131426165 has 16 divisors (see below), whose sum is σ = 170623488. Its totient is φ = 96607296.

The previous prime is 131426129. The next prime is 131426179. The reversal of 131426165 is 561624131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131426165 - 2¹⁰ = 131425141 is a prime.

It is a Duffinian number.

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, 9962 + ... + 19028.

It is an arithmetic number, because the mean of its divisors is an integer number (10663968).

Almost surely, 2^131426165 is an apocalyptic number.

It is an amenable number.

131426165 is a deficient number, since it is larger than the sum of its proper divisors (39197323).

131426165 is a wasteful number, since it uses less digits than its factorization.

131426165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308.

The product of its digits is 4320, while the sum is 29.

The square root of 131426165 is about 11464.1251301615. The cubic root of 131426165 is about 508.4254462357.

The spelling of 131426165 in words is "one hundred thirty-one million, four hundred twenty-six thousand, one hundred sixty-five".