131145265 has 16 divisors (see below), whose sum is σ = 162804096. Its totient is φ = 101347200.

The previous prime is 131145263. The next prime is 131145317. The reversal of 131145265 is 562541131.

It is not a de Polignac number, because 131145265 - 2¹ = 131145263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131145263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18010 + ... + 24220.

It is an arithmetic number, because the mean of its divisors is an integer number (10175256).

Almost surely, 2^131145265 is an apocalyptic number.

It is an amenable number.

131145265 is a deficient number, since it is larger than the sum of its proper divisors (31658831).

131145265 is a wasteful number, since it uses less digits than its factorization.

131145265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360.

The product of its digits is 3600, while the sum is 28.

The square root of 131145265 is about 11451.8673149841. The cubic root of 131145265 is about 508.0629649463.

Adding to 131145265 its reverse (562541131), we get a palindrome (693686396).

The spelling of 131145265 in words is "one hundred thirty-one million, one hundred forty-five thousand, two hundred sixty-five".