65231117 has 4 divisors (see below), whose sum is σ = 74549856. Its totient is φ = 55912380.

The previous prime is 65231107. The next prime is 65231147. The reversal of 65231117 is 71113256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65231117 - 2²⁰ = 64182541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65231107) 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, 4659359 + ... + 4659372.

It is an arithmetic number, because the mean of its divisors is an integer number (18637464).

Almost surely, 2^65231117 is an apocalyptic number.

It is an amenable number.

65231117 is a deficient number, since it is larger than the sum of its proper divisors (9318739).

65231117 is an equidigital number, since it uses as much as digits as its factorization.

65231117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9318738.

The product of its digits is 1260, while the sum is 26.

The square root of 65231117 is about 8076.5782977694. The cubic root of 65231117 is about 402.5485547690.

The spelling of 65231117 in words is "sixty-five million, two hundred thirty-one thousand, one hundred seventeen".