1312951874 has 12 divisors (see below), whose sum is σ = 2132576226. Its totient is φ = 605977632.

The previous prime is 1312951867. The next prime is 1312951877. The reversal of 1312951874 is 4781592131.

It can be written as a sum of positive squares in 3 ways, for example, as 1069747849 + 243204025 = 32707^2 + 15595^2 .

It is a super-2 number, since 2×1312951874² = 3447685246880223752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312951877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1941899 + ... + 1942574.

Almost surely, 2^1312951874 is an apocalyptic number.

1312951874 is a deficient number, since it is larger than the sum of its proper divisors (819624352).

1312951874 is a wasteful number, since it uses less digits than its factorization.

1312951874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884501 (or 3884488 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 1312951874 is about 36234.6777824779. The cubic root of 1312951874 is about 1095.0054207664.

The spelling of 1312951874 in words is "one billion, three hundred twelve million, nine hundred fifty-one thousand, eight hundred seventy-four".