431131252 has 24 divisors (see below), whose sum is σ = 778405376. Its totient is φ = 208783008.

The previous prime is 431131243. The next prime is 431131279. The reversal of 431131252 is 252131134.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26473 + ... + 39535.

Almost surely, 2^431131252 is an apocalyptic number.

It is an amenable number.

431131252 is a deficient number, since it is larger than the sum of its proper divisors (347274124).

431131252 is a wasteful number, since it uses less digits than its factorization.

431131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13327 (or 13325 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 431131252 is about 20763.7003445918. The cubic root of 431131252 is about 755.4455519621.

Adding to 431131252 its reverse (252131134), we get a palindrome (683262386).

The spelling of 431131252 in words is "four hundred thirty-one million, one hundred thirty-one thousand, two hundred fifty-two".