131357531165 has 32 divisors (see below), whose sum is σ = 190984648704. Its totient is φ = 84812209920.

The previous prime is 131357531153. The next prime is 131357531177. The reversal of 131357531165 is 561135753131.

It is an interprime number because it is at equal distance from previous prime (131357531153) and next prime (131357531177).

It is not a de Polignac number, because 131357531165 - 2⁶ = 131357531101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1595894 + ... + 1676183.

It is an arithmetic number, because the mean of its divisors is an integer number (5968270272).

Almost surely, 2^131357531165 is an apocalyptic number.

It is an amenable number.

131357531165 is a deficient number, since it is larger than the sum of its proper divisors (59627117539).

131357531165 is a wasteful number, since it uses less digits than its factorization.

131357531165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272157.

The product of its digits is 141750, while the sum is 41.

The spelling of 131357531165 in words is "one hundred thirty-one billion, three hundred fifty-seven million, five hundred thirty-one thousand, one hundred sixty-five".