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132127231 = 262150411
BaseRepresentation
bin1111110000000…
…01100111111111
3100012121202111011
413320001213333
5232311032411
621035540051
73163030405
oct770014777
9305552434
10132127231
1168645165
12382ba627
13214b1ac2
1413795475
15b8edc21
hex7e019ff

132127231 has 4 divisors (see below), whose sum is σ = 132180264. Its totient is φ = 132074200.

The previous prime is 132127223. The next prime is 132127279. The reversal of 132127231 is 132721231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132721231 = 139954829.

It is a cyclic number.

It is not a de Polignac number, because 132127231 - 23 = 132127223 is a prime.

It is a super-2 number, since 2×1321272312 = 34915210343454722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132127201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22585 + ... + 27826.

It is an arithmetic number, because the mean of its divisors is an integer number (33045066).

Almost surely, 2132127231 is an apocalyptic number.

132127231 is a deficient number, since it is larger than the sum of its proper divisors (53033).

132127231 is an equidigital number, since it uses as much as digits as its factorization.

132127231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53032.

The product of its digits is 504, while the sum is 22.

The square root of 132127231 is about 11494.6609780367. The cubic root of 132127231 is about 509.3278740498.

Adding to 132127231 its reverse (132721231), we get a palindrome (264848462).

The spelling of 132127231 in words is "one hundred thirty-two million, one hundred twenty-seven thousand, two hundred thirty-one".

Divisors: 1 2621 50411 132127231