231073272 has 48 divisors (see below), whose sum is σ = 653037840. Its totient is φ = 73675008.

The previous prime is 231073267. The next prime is 231073289. The reversal of 231073272 is 272370132.

It is a happy number.

231073272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 68113 + ... + 71424.

It is an arithmetic number, because the mean of its divisors is an integer number (13604955).

Almost surely, 2^231073272 is an apocalyptic number.

It is an amenable number.

231073272 is an abundant number, since it is smaller than the sum of its proper divisors (421964568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231073272 is a wasteful number, since it uses less digits than its factorization.

231073272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139572 (or 139565 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 231073272 is about 15201.0944342833. The cubic root of 231073272 is about 613.6441118244.

The spelling of 231073272 in words is "two hundred thirty-one million, seventy-three thousand, two hundred seventy-two".