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132131555 = 526426311
BaseRepresentation
bin1111110000000…
…10101011100011
3100012121222102022
413320002223203
5232311202210
621040012055
73163046123
oct770025343
9305558368
10132131555
1168648436
123830102b
13214b3a6a
1413796c83
15b900155
hex7e02ae3

132131555 has 4 divisors (see below), whose sum is σ = 158557872. Its totient is φ = 105705240.

The previous prime is 132131521. The next prime is 132131563. The reversal of 132131555 is 555131231.

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: 555131231 = 5211065511.

It is not a de Polignac number, because 132131555 - 28 = 132131299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13213151 + ... + 13213160.

It is an arithmetic number, because the mean of its divisors is an integer number (39639468).

Almost surely, 2132131555 is an apocalyptic number.

132131555 is a deficient number, since it is larger than the sum of its proper divisors (26426317).

132131555 is an equidigital number, since it uses as much as digits as its factorization.

132131555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26426316.

The product of its digits is 2250, while the sum is 26.

The square root of 132131555 is about 11494.8490638198. The cubic root of 132131555 is about 509.3334300827. Note that the first 3 decimals are identical.

Adding to 132131555 its reverse (555131231), we get a palindrome (687262786).

The spelling of 132131555 in words is "one hundred thirty-two million, one hundred thirty-one thousand, five hundred fifty-five".

Divisors: 1 5 26426311 132131555