231573051 has 12 divisors (see below), whose sum is σ = 334657128. Its totient is φ = 154306944.

The previous prime is 231573049. The next prime is 231573073. The reversal of 231573051 is 150375132.

It is not a de Polignac number, because 231573051 - 2¹ = 231573049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231573151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18376 + ... + 28298.

It is an arithmetic number, because the mean of its divisors is an integer number (27888094).

Almost surely, 2^231573051 is an apocalyptic number.

231573051 is a deficient number, since it is larger than the sum of its proper divisors (103084077).

231573051 is a wasteful number, since it uses less digits than its factorization.

231573051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12522 (or 12519 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 231573051 is about 15217.5244701627. The cubic root of 231573051 is about 614.0862018977.

The spelling of 231573051 in words is "two hundred thirty-one million, five hundred seventy-three thousand, fifty-one".