131901900625 has 20 divisors (see below), whose sum is σ = 179808680304. Its totient is φ = 95928650000.

The previous prime is 131901900619. The next prime is 131901900649. The reversal of 131901900625 is 526009109131.

It is a happy number.

It is not a de Polignac number, because 131901900625 - 2⁹ = 131901900113 is a prime.

It is a super-2 number, since 2×131901900625² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9585991 + ... + 9599740.

Almost surely, 2^131901900625 is an apocalyptic number.

It is an amenable number.

131901900625 is a deficient number, since it is larger than the sum of its proper divisors (47906779679).

131901900625 is an equidigital number, since it uses as much as digits as its factorization.

131901900625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19185762 (or 19185747 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The spelling of 131901900625 in words is "one hundred thirty-one billion, nine hundred one million, nine hundred thousand, six hundred twenty-five".