231583473 has 36 divisors (see below), whose sum is σ = 380414580. Its totient is φ = 135495360.

The previous prime is 231583463. The next prime is 231583477. The reversal of 231583473 is 374385132.

231583473 is a `hidden beast` number, since 2 + 3 + 1 + 583 + 4 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43125489 + 188457984 = 6567^2 + 13728^2 .

It is not a de Polignac number, because 231583473 - 2²⁰ = 230534897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231583477) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27915 + ... + 35247.

Almost surely, 2^231583473 is an apocalyptic number.

It is an amenable number.

231583473 is a deficient number, since it is larger than the sum of its proper divisors (148831107).

231583473 is a wasteful number, since it uses less digits than its factorization.

231583473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390 (or 7376 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 231583473 is about 15217.8669004562. The cubic root of 231583473 is about 614.0954141245.

The spelling of 231583473 in words is "two hundred thirty-one million, five hundred eighty-three thousand, four hundred seventy-three".