131366265 has 16 divisors (see below), whose sum is σ = 210452928. Its totient is φ = 69973056.

The previous prime is 131366239. The next prime is 131366281. The reversal of 131366265 is 562663131.

It is not a de Polignac number, because 131366265 - 2¹¹ = 131364217 is a prime.

It is a Curzon 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, 7662 + ... + 17928.

It is an arithmetic number, because the mean of its divisors is an integer number (13153308).

Almost surely, 2^131366265 is an apocalyptic number.

131366265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131366265 is a deficient number, since it is larger than the sum of its proper divisors (79086663).

131366265 is a wasteful number, since it uses less digits than its factorization.

131366265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128.

The product of its digits is 19440, while the sum is 33.

The square root of 131366265 is about 11461.5123347663. The cubic root of 131366265 is about 508.3481929425.

The spelling of 131366265 in words is "one hundred thirty-one million, three hundred sixty-six thousand, two hundred sixty-five".