1431231564 has 48 divisors (see below), whose sum is σ = 4041128448. Its totient is φ = 384868608.

The previous prime is 1431231559. The next prime is 1431231587. The reversal of 1431231564 is 4651321341.

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, 499704 + ... + 502559.

It is an arithmetic number, because the mean of its divisors is an integer number (84190176).

Almost surely, 2^1431231564 is an apocalyptic number.

1431231564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1431231564 is an abundant number, since it is smaller than the sum of its proper divisors (2609896884).

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

1431231564 is a wasteful number, since it uses less digits than its factorization.

1431231564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002294 (or 1002292 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 1431231564 is about 37831.6212182349. The cubic root of 1431231564 is about 1126.9465070938.

The spelling of 1431231564 in words is "one billion, four hundred thirty-one million, two hundred thirty-one thousand, five hundred sixty-four".