231008072 has 8 divisors (see below), whose sum is σ = 433140150. Its totient is φ = 115504032.

The previous prime is 231008051. The next prime is 231008093. The reversal of 231008072 is 270800132.

231008072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231008051) and next prime (231008093).

It can be written as a sum of positive squares in only one way, i.e., 156600196 + 74407876 = 12514^2 + 8626^2 .

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, 14437997 + ... + 14438012.

Almost surely, 2^231008072 is an apocalyptic number.

It is an amenable number.

231008072 is a deficient number, since it is larger than the sum of its proper divisors (202132078).

231008072 is a wasteful number, since it uses less digits than its factorization.

231008072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28876015 (or 28876011 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 231008072 is about 15198.9497005550. The cubic root of 231008072 is about 613.5863907973.

The spelling of 231008072 in words is "two hundred thirty-one million, eight thousand, seventy-two".