231205452 has 48 divisors (see below), whose sum is σ = 583242240. Its totient is φ = 71036352.

The previous prime is 231205441. The next prime is 231205477. The reversal of 231205452 is 254502132.

It is a super-2 number, since 2×231205452² = 106911922069048608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5268 + ... + 22139.

It is an arithmetic number, because the mean of its divisors is an integer number (12150880).

Almost surely, 2^231205452 is an apocalyptic number.

It is an amenable number.

231205452 is an abundant number, since it is smaller than the sum of its proper divisors (352036788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231205452 is a wasteful number, since it uses less digits than its factorization.

231205452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27470 (or 27468 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 231205452 is about 15205.4415259801. The cubic root of 231205452 is about 613.7610963879.

Adding to 231205452 its reverse (254502132), we get a palindrome (485707584).

The spelling of 231205452 in words is "two hundred thirty-one million, two hundred five thousand, four hundred fifty-two".