252431133 has 8 divisors (see below), whose sum is σ = 336722496. Its totient is φ = 168213600.

The previous prime is 252431129. The next prime is 252431173. The reversal of 252431133 is 331134252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252431133 - 2² = 252431129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252431173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9913 + ... + 24558.

It is an arithmetic number, because the mean of its divisors is an integer number (42090312).

Almost surely, 2^252431133 is an apocalyptic number.

It is an amenable number.

252431133 is a deficient number, since it is larger than the sum of its proper divisors (84291363).

252431133 is a wasteful number, since it uses less digits than its factorization.

252431133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36915.

The product of its digits is 2160, while the sum is 24.

The square root of 252431133 is about 15888.0814763772. The cubic root of 252431133 is about 631.9959649972.

Adding to 252431133 its reverse (331134252), we get a palindrome (583565385).

The spelling of 252431133 in words is "two hundred fifty-two million, four hundred thirty-one thousand, one hundred thirty-three".