131104656 has 50 divisors (see below), whose sum is σ = 379458662. Its totient is φ = 43701120.

The previous prime is 131104627. The next prime is 131104703. The reversal of 131104656 is 656401131.

131104656 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 0 + 4 + 656 = 666.

It can be written as a sum of positive squares in only one way, i.e., 128595600 + 2509056 = 11340^2 + 1584^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49285 + ... + 51876.

Almost surely, 2^131104656 is an apocalyptic number.

131104656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131104656 is an abundant number, since it is smaller than the sum of its proper divisors (248354006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131104656 is a wasteful number, since it uses less digits than its factorization.

131104656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101181 (or 101166 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131104656 is about 11450.0941480845. The cubic root of 131104656 is about 508.0105191366.

Adding to 131104656 its reverse (656401131), we get a palindrome (787505787).

It can be divided in two parts, 13110 and 4656, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 131104656 in words is "one hundred thirty-one million, one hundred four thousand, six hundred fifty-six".