1312654020 has 24 divisors (see below), whose sum is σ = 3675431424. Its totient is φ = 350041056.

The previous prime is 1312654019. The next prime is 1312654033. The reversal of 1312654020 is 204562131.

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, 10938724 + ... + 10938843.

It is an arithmetic number, because the mean of its divisors is an integer number (153142976).

Almost surely, 2^1312654020 is an apocalyptic number.

1312654020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312654020 is an abundant number, since it is smaller than the sum of its proper divisors (2362777404).

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

1312654020 is a wasteful number, since it uses less digits than its factorization.

1312654020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21877579 (or 21877577 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1312654020 is about 36230.5674810649. The cubic root of 1312654020 is about 1094.9226108230.

The spelling of 1312654020 in words is "one billion, three hundred twelve million, six hundred fifty-four thousand, twenty".