1312718810 has 32 divisors (see below), whose sum is σ = 2559407760. Its totient is φ = 481886208.

The previous prime is 1312718791. The next prime is 1312718821. The reversal of 1312718810 is 188172131.

It can be written as a sum of positive squares in 8 ways, for example, as 648058849 + 664659961 = 25457^2 + 25781^2 .

It is a super-2 number, since 2×1312718810² = 3446461348255632200, which contains 22 as substring.

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, 6695 + ... + 51674.

Almost surely, 2^1312718810 is an apocalyptic number.

1312718810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312718810 is a deficient number, since it is larger than the sum of its proper divisors (1246688950).

1312718810 is a wasteful number, since it uses less digits than its factorization.

1312718810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58562.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 1312718810 is about 36231.4616045227. The cubic root of 1312718810 is about 1094.9406249298.

The spelling of 1312718810 in words is "one billion, three hundred twelve million, seven hundred eighteen thousand, eight hundred ten".