131622633925 has 12 divisors (see below), whose sum is σ = 163240791876. Its totient is φ = 105279574400.

The previous prime is 131622633889. The next prime is 131622633949. The reversal of 131622633925 is 529336226131.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19746432484 + 111876201441 = 140522^2 + 334479^2 .

It is not a de Polignac number, because 131622633925 - 2¹⁵ = 131622601157 is a prime.

It is a super-2 number, since 2×131622633925² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317536 + ... + 603385.

It is an arithmetic number, because the mean of its divisors is an integer number (13603399323).

Almost surely, 2^131622633925 is an apocalyptic number.

It is an amenable number.

131622633925 is a deficient number, since it is larger than the sum of its proper divisors (31618157951).

131622633925 is an equidigital number, since it uses as much as digits as its factorization.

131622633925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926648 (or 926643 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The spelling of 131622633925 in words is "one hundred thirty-one billion, six hundred twenty-two million, six hundred thirty-three thousand, nine hundred twenty-five".