65936131 has 4 divisors (see below), whose sum is σ = 66108672. Its totient is φ = 65763592.

The previous prime is 65936093. The next prime is 65936153. The reversal of 65936131 is 13163956.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65936131 is a prime.

It is a super-2 number, since 2×65936131² = 8695146742498322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65936191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85696 + ... + 86461.

It is an arithmetic number, because the mean of its divisors is an integer number (16527168).

Almost surely, 2^65936131 is an apocalyptic number.

65936131 is a deficient number, since it is larger than the sum of its proper divisors (172541).

65936131 is a wasteful number, since it uses less digits than its factorization.

65936131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172540.

The product of its digits is 14580, while the sum is 34.

The square root of 65936131 is about 8120.1065879704. The cubic root of 65936131 is about 403.9936014247.

The spelling of 65936131 in words is "sixty-five million, nine hundred thirty-six thousand, one hundred thirty-one".