131508864525 has 24 divisors (see below), whose sum is σ = 220992390304. Its totient is φ = 68988254400.

The previous prime is 131508864523. The next prime is 131508864527. The reversal of 131508864525 is 525468805131.

It is an interprime number because it is at equal distance from previous prime (131508864523) and next prime (131508864527).

It is not a de Polignac number, because 131508864525 - 2¹ = 131508864523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131508864523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14367979 + ... + 14377128.

Almost surely, 2^131508864525 is an apocalyptic number.

131508864525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131508864525 is a deficient number, since it is larger than the sum of its proper divisors (89483525779).

131508864525 is a wasteful number, since it uses less digits than its factorization.

131508864525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28745181 (or 28745176 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 131508864525 in words is "one hundred thirty-one billion, five hundred eight million, eight hundred sixty-four thousand, five hundred twenty-five".