252431146 has 32 divisors (see below), whose sum is σ = 421977600. Its totient is φ = 112285680.

The previous prime is 252431129. The next prime is 252431173. The reversal of 252431146 is 641134252.

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, 569601 + ... + 570043.

It is an arithmetic number, because the mean of its divisors is an integer number (13186800).

Almost surely, 2^252431146 is an apocalyptic number.

252431146 is a deficient number, since it is larger than the sum of its proper divisors (169546454).

252431146 is a wasteful number, since it uses less digits than its factorization.

252431146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its digits is 5760, while the sum is 28.

The square root of 252431146 is about 15888.0818854889. The cubic root of 252431146 is about 631.9959758463.

Adding to 252431146 its reverse (641134252), we get a palindrome (893565398).

It can be divided in two parts, 2524 and 31146, that added together give a triangular number (33670 = T₂₅₉).

The spelling of 252431146 in words is "two hundred fifty-two million, four hundred thirty-one thousand, one hundred forty-six".