131312626257 has 8 divisors (see below), whose sum is σ = 175118267520. Its totient is φ = 87524367920.

The previous prime is 131312626241. The next prime is 131312626271. The reversal of 131312626257 is 752626213131.

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

It is a cyclic number.

It is not a de Polignac number, because 131312626257 - 2⁴ = 131312626241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131312626457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328094 + ... + 4358327.

It is an arithmetic number, because the mean of its divisors is an integer number (21889783440).

Almost surely, 2^131312626257 is an apocalyptic number.

It is an amenable number.

131312626257 is a deficient number, since it is larger than the sum of its proper divisors (43805641263).

131312626257 is an equidigital number, since it uses as much as digits as its factorization.

131312626257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8691463.

The product of its digits is 90720, while the sum is 39.

Adding to 131312626257 its reverse (752626213131), we get a palindrome (883938839388).

The spelling of 131312626257 in words is "one hundred thirty-one billion, three hundred twelve million, six hundred twenty-six thousand, two hundred fifty-seven".