231217695 has 12 divisors (see below), whose sum is σ = 400777416. Its totient is φ = 123316080.

The previous prime is 231217673. The next prime is 231217703. The reversal of 231217695 is 596712132.

231217695 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231217695 - 2¹⁵ = 231184927 is a prime.

It is a super-2 number, since 2×231217695² = 106923244962226050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2569041 + ... + 2569130.

It is an arithmetic number, because the mean of its divisors is an integer number (33398118).

Almost surely, 2^231217695 is an apocalyptic number.

231217695 is a deficient number, since it is larger than the sum of its proper divisors (169559721).

231217695 is a wasteful number, since it uses less digits than its factorization.

231217695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138182 (or 5138179 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 231217695 is about 15205.8441067900. The cubic root of 231217695 is about 613.7719296741.

The spelling of 231217695 in words is "two hundred thirty-one million, two hundred seventeen thousand, six hundred ninety-five".