1312973767 has 24 divisors (see below), whose sum is σ = 1619914464. Its totient is φ = 1057416192.

The previous prime is 1312973743. The next prime is 1312973773. The reversal of 1312973767 is 7673792131.

It is not a de Polignac number, because 1312973767 - 2¹⁵ = 1312940999 is a prime.

It is a super-2 number, since 2×1312973767² = 3447800225660340578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312973737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737983 + ... + 739759.

It is an arithmetic number, because the mean of its divisors is an integer number (67496436).

Almost surely, 2^1312973767 is an apocalyptic number.

1312973767 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1312973767 is a deficient number, since it is larger than the sum of its proper divisors (306940697).

1312973767 is a wasteful number, since it uses less digits than its factorization.

1312973767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2688 counting only the distinct ones).

The product of its digits is 333396, while the sum is 46.

The square root of 1312973767 is about 36234.9798813246. The cubic root of 1312973767 is about 1095.0115070064.

The spelling of 1312973767 in words is "one billion, three hundred twelve million, nine hundred seventy-three thousand, seven hundred sixty-seven".