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132401227 = 718914461
BaseRepresentation
bin1111110010001…
…00100001001011
3100020010200100011
413321010201023
5232343314402
621045452351
73165251260
oct771044113
9306120304
10132401227
1168812002
12384110b7
132157972a
1413827267
15b954ed7
hex7e4484b

132401227 has 4 divisors (see below), whose sum is σ = 151315696. Its totient is φ = 113486760.

The previous prime is 132401221. The next prime is 132401239. The reversal of 132401227 is 722104231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722104231 = 2230332377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132401227 is a prime.

It is a super-2 number, since 2×1324012272 = 35060169822211058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132401198 and 132401207.

It is not an unprimeable number, because it can be changed into a prime (132401221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9457224 + ... + 9457237.

It is an arithmetic number, because the mean of its divisors is an integer number (37828924).

Almost surely, 2132401227 is an apocalyptic number.

132401227 is a deficient number, since it is larger than the sum of its proper divisors (18914469).

132401227 is an equidigital number, since it uses as much as digits as its factorization.

132401227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18914468.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 132401227 is about 11506.5732083883. The cubic root of 132401227 is about 509.6797002014.

Adding to 132401227 its reverse (722104231), we get a palindrome (854505458).

The spelling of 132401227 in words is "one hundred thirty-two million, four hundred one thousand, two hundred twenty-seven".

Divisors: 1 7 18914461 132401227