231617332 has 6 divisors (see below), whose sum is σ = 405330338. Its totient is φ = 115808664.

The previous prime is 231617327. The next prime is 231617357. The reversal of 231617332 is 233716132.

It can be written as a sum of positive squares in only one way, i.e., 133726096 + 97891236 = 11564^2 + 9894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231617332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28952163 + ... + 28952170.

Almost surely, 2^231617332 is an apocalyptic number.

It is an amenable number.

231617332 is a deficient number, since it is larger than the sum of its proper divisors (173713006).

231617332 is a wasteful number, since it uses less digits than its factorization.

231617332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57904337 (or 57904335 counting only the distinct ones).

The product of its digits is 4536, while the sum is 28.

The square root of 231617332 is about 15218.9793350277. The cubic root of 231617332 is about 614.1253409051.

The spelling of 231617332 in words is "two hundred thirty-one million, six hundred seventeen thousand, three hundred thirty-two".