1312695077 has 4 divisors (see below), whose sum is σ = 1369768800. Its totient is φ = 1255621356.

The previous prime is 1312695067. The next prime is 1312695089. The reversal of 1312695077 is 7705962131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1312695077 - 2⁸ = 1312694821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312695067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28536827 + ... + 28536872.

It is an arithmetic number, because the mean of its divisors is an integer number (342442200).

Almost surely, 2^1312695077 is an apocalyptic number.

It is an amenable number.

1312695077 is a deficient number, since it is larger than the sum of its proper divisors (57073723).

1312695077 is an equidigital number, since it uses as much as digits as its factorization.

1312695077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57073722.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 1312695077 is about 36231.1340838235. The cubic root of 1312695077 is about 1094.9340263137.

The spelling of 1312695077 in words is "one billion, three hundred twelve million, six hundred ninety-five thousand, seventy-seven".