131550165 has 48 divisors (see below), whose sum is σ = 242611200. Its totient is φ = 65711616.

The previous prime is 131550157. The next prime is 131550191. The reversal of 131550165 is 561055131.

It is not a de Polignac number, because 131550165 - 2³ = 131550157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274396 + ... + 274874.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^131550165 is an apocalyptic number.

131550165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131550165 is a deficient number, since it is larger than the sum of its proper divisors (111061035).

131550165 is a wasteful number, since it uses less digits than its factorization.

131550165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 131550165 is about 11469.5320305582. The cubic root of 131550165 is about 508.5852950204.

The spelling of 131550165 in words is "one hundred thirty-one million, five hundred fifty thousand, one hundred sixty-five".