131613255 has 40 divisors (see below), whose sum is σ = 242332992. Its totient is φ = 68288832.

The previous prime is 131613253. The next prime is 131613263. The reversal of 131613255 is 552316131.

It is not a de Polignac number, because 131613255 - 2¹ = 131613253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131613253) 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 39 ways as a sum of consecutive naturals, for example, 10594 + ... + 19376.

Almost surely, 2^131613255 is an apocalyptic number.

131613255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131613255 is a deficient number, since it is larger than the sum of its proper divisors (110719737).

131613255 is an equidigital number, since it uses as much as digits as its factorization.

131613255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837 (or 8828 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 131613255 is about 11472.2820310521. The cubic root of 131613255 is about 508.6665859818. Note that the first 3 decimals are identical.

Adding to 131613255 its reverse (552316131), we get a palindrome (683929386).

The spelling of 131613255 in words is "one hundred thirty-one million, six hundred thirteen thousand, two hundred fifty-five".