131373157365 has 64 divisors (see below), whose sum is σ = 234536736000. Its totient is φ = 69770937600.

The previous prime is 131373157327. The next prime is 131373157423. The reversal of 131373157365 is 563751373131.

131373157365 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 73 + 1 + 573 + 6 + 5 = 666.

It is not a de Polignac number, because 131373157365 - 2¹² = 131373153269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 131373157365.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 48103050 + ... + 48105780.

It is an arithmetic number, because the mean of its divisors is an integer number (3664636500).

Almost surely, 2^131373157365 is an apocalyptic number.

131373157365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131373157365 is a deficient number, since it is larger than the sum of its proper divisors (103163578635).

131373157365 is a wasteful number, since it uses less digits than its factorization.

131373157365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115 (or 4109 counting only the distinct ones).

The product of its digits is 595350, while the sum is 45.

The spelling of 131373157365 in words is "one hundred thirty-one billion, three hundred seventy-three million, one hundred fifty-seven thousand, three hundred sixty-five".