231069057 has 16 divisors (see below), whose sum is σ = 316924608. Its totient is φ = 149667840.

The previous prime is 231069053. The next prime is 231069079. The reversal of 231069057 is 750960132.

231069057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231069057 - 2² = 231069053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231069053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20257 + ... + 29537.

It is an arithmetic number, because the mean of its divisors is an integer number (19807788).

Almost surely, 2^231069057 is an apocalyptic number.

It is an amenable number.

231069057 is a deficient number, since it is larger than the sum of its proper divisors (85855551).

231069057 is a wasteful number, since it uses less digits than its factorization.

231069057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 231069057 is about 15200.9557923178. The cubic root of 231069057 is about 613.6403806476.

The spelling of 231069057 in words is "two hundred thirty-one million, sixty-nine thousand, fifty-seven".