131256626 has 8 divisors (see below), whose sum is σ = 208466460. Its totient is φ = 61767808.

The previous prime is 131256623. The next prime is 131256637. The reversal of 131256626 is 626652131.

131256626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131217025 + 39601 = 11455^2 + 199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131256592 and 131256601.

It is not an unprimeable number, because it can be changed into a prime (131256623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1930211 + ... + 1930278.

Almost surely, 2^131256626 is an apocalyptic number.

131256626 is a deficient number, since it is larger than the sum of its proper divisors (77209834).

131256626 is a wasteful number, since it uses less digits than its factorization.

131256626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860508.

The product of its digits is 12960, while the sum is 32.

The square root of 131256626 is about 11456.7284160881. The cubic root of 131256626 is about 508.2067301902.

The spelling of 131256626 in words is "one hundred thirty-one million, two hundred fifty-six thousand, six hundred twenty-six".