204015231 has 12 divisors (see below), whose sum is σ = 336787152. Its totient is φ = 116580096.

The previous prime is 204015211. The next prime is 204015241. The reversal of 204015231 is 132510402.

204015231 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 204015231 - 2⁹ = 204014719 is a prime.

It is a super-2 number, since 2×204015231² = 83244428959966722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204015211) 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, 1619106 + ... + 1619231.

It is an arithmetic number, because the mean of its divisors is an integer number (28065596).

Almost surely, 2^204015231 is an apocalyptic number.

204015231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204015231 is a deficient number, since it is larger than the sum of its proper divisors (132771921).

204015231 is a wasteful number, since it uses less digits than its factorization.

204015231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238350 (or 3238347 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204015231 is about 14283.3900387828. The cubic root of 204015231 is about 588.6911818666.

Adding to 204015231 its reverse (132510402), we get a palindrome (336525633).

It can be divided in two parts, 2040 and 15231, that added together give a palindrome (17271).

The spelling of 204015231 in words is "two hundred four million, fifteen thousand, two hundred thirty-one".