431231164 has 36 divisors (see below), whose sum is σ = 945396984. Its totient is φ = 170595936.

The previous prime is 431231147. The next prime is 431231183. The reversal of 431231164 is 461132134.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 82074 + ... + 87169.

Almost surely, 2^431231164 is an apocalyptic number.

It is an amenable number.

431231164 is an abundant number, since it is smaller than the sum of its proper divisors (514165820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431231164 is a wasteful number, since it uses less digits than its factorization.

431231164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169274 (or 169265 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 431231164 is about 20766.1061347572. The cubic root of 431231164 is about 755.5039040655.

Adding to 431231164 its reverse (461132134), we get a palindrome (892363298).

The spelling of 431231164 in words is "four hundred thirty-one million, two hundred thirty-one thousand, one hundred sixty-four".