131225978460 has 48 divisors (see below), whose sum is σ = 380102839200. Its totient is φ = 33786918144.

The previous prime is 131225978447. The next prime is 131225978491. The reversal of 131225978460 is 64879522131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37706875 + ... + 37710354.

It is an arithmetic number, because the mean of its divisors is an integer number (7918809150).

It is a 1-persistent number, because it is pandigital, but 2⋅131225978460 = 262451956920 is not.

Almost surely, 2^131225978460 is an apocalyptic number.

131225978460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131225978460 is an abundant number, since it is smaller than the sum of its proper divisors (248876860740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131225978460 is a wasteful number, since it uses less digits than its factorization.

131225978460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75417270 (or 75417268 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 131225978460 in words is "one hundred thirty-one billion, two hundred twenty-five million, nine hundred seventy-eight thousand, four hundred sixty".