312431134 has 16 divisors (see below), whose sum is σ = 499791600. Its totient is φ = 145966464.

The previous prime is 312431107. The next prime is 312431143. The reversal of 312431134 is 431134213.

It is a super-2 number, since 2×312431134² = 195226426985051912, which contains 22 as substring.

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, 28329 + ... + 37780.

It is an arithmetic number, because the mean of its divisors is an integer number (31236975).

Almost surely, 2^312431134 is an apocalyptic number.

312431134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

312431134 is a deficient number, since it is larger than the sum of its proper divisors (187360466).

312431134 is a wasteful number, since it uses less digits than its factorization.

312431134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66267.

The product of its digits is 864, while the sum is 22.

The square root of 312431134 is about 17675.7215977170. The cubic root of 312431134 is about 678.5545521976.

Adding to 312431134 its reverse (431134213), we get a palindrome (743565347).

The spelling of 312431134 in words is "three hundred twelve million, four hundred thirty-one thousand, one hundred thirty-four".