231171272 has 8 divisors (see below), whose sum is σ = 433446150. Its totient is φ = 115585632.

The previous prime is 231171257. The next prime is 231171293. The reversal of 231171272 is 272171132.

231171272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123965956 + 107205316 = 11134^2 + 10354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14448197 + ... + 14448212.

Almost surely, 2^231171272 is an apocalyptic number.

It is an amenable number.

231171272 is a deficient number, since it is larger than the sum of its proper divisors (202274878).

231171272 is a wasteful number, since it uses less digits than its factorization.

231171272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28896415 (or 28896411 counting only the distinct ones).

The product of its digits is 1176, while the sum is 26.

The square root of 231171272 is about 15204.3175446976. The cubic root of 231171272 is about 613.7308500018.

It can be divided in two parts, 23117 and 1272, that added together give a cube (24389 = 29³).

The spelling of 231171272 in words is "two hundred thirty-one million, one hundred seventy-one thousand, two hundred seventy-two".