231272284 has 24 divisors (see below), whose sum is σ = 436626288. Its totient is φ = 106778880.

The previous prime is 231272221. The next prime is 231272299. The reversal of 231272284 is 482272132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28482 + ... + 35689.

It is an arithmetic number, because the mean of its divisors is an integer number (18192762).

Almost surely, 2^231272284 is an apocalyptic number.

It is an amenable number.

231272284 is a deficient number, since it is larger than the sum of its proper divisors (205354004).

231272284 is a wasteful number, since it uses less digits than its factorization.

231272284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64245 (or 64243 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 231272284 is about 15207.6390015018. The cubic root of 231272284 is about 613.8202283989.

The spelling of 231272284 in words is "two hundred thirty-one million, two hundred seventy-two thousand, two hundred eighty-four".