231813452 has 24 divisors (see below), whose sum is σ = 459874800. Its totient is φ = 101359296.

The previous prime is 231813427. The next prime is 231813469. The reversal of 231813452 is 254318132.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116327 + ... + 118302.

It is an arithmetic number, because the mean of its divisors is an integer number (19161450).

Almost surely, 2^231813452 is an apocalyptic number.

It is an amenable number.

231813452 is a deficient number, since it is larger than the sum of its proper divisors (228061348).

231813452 is a wasteful number, since it uses less digits than its factorization.

231813452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234665 (or 234663 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 231813452 is about 15225.4212421200. The cubic root of 231813452 is about 614.2986271359.

The spelling of 231813452 in words is "two hundred thirty-one million, eight hundred thirteen thousand, four hundred fifty-two".