131256375 has 32 divisors (see below), whose sum is σ = 223763904. Its totient is φ = 68288000.

The previous prime is 131256373. The next prime is 131256379. The reversal of 131256375 is 573652131.

It is not a de Polignac number, because 131256375 - 2¹ = 131256373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131256373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11107 + ... + 19643.

It is an arithmetic number, because the mean of its divisors is an integer number (6992622).

Almost surely, 2^131256375 is an apocalyptic number.

131256375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131256375 is a deficient number, since it is larger than the sum of its proper divisors (92507529).

131256375 is an equidigital number, since it uses as much as digits as its factorization.

131256375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596 (or 8586 counting only the distinct ones).

The product of its digits is 18900, while the sum is 33.

The square root of 131256375 is about 11456.7174618213. The cubic root of 131256375 is about 508.2064062447.

The spelling of 131256375 in words is "one hundred thirty-one million, two hundred fifty-six thousand, three hundred seventy-five".