1312677089 has 2 divisors, whose sum is σ = 1312677090. Its totient is φ = 1312677088.

The previous prime is 1312677077. The next prime is 1312677097. The reversal of 1312677089 is 9807762131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1283430625 + 29246464 = 35825^2 + 5408^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312677089 - 2²⁸ = 1044241633 is a prime.

It is a super-2 number, since 2×1312677089² = 3446242279971027842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312677019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656338544 + 656338545.

It is an arithmetic number, because the mean of its divisors is an integer number (656338545).

Almost surely, 2^1312677089 is an apocalyptic number.

It is an amenable number.

1312677089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312677089 is an equidigital number, since it uses as much as digits as its factorization.

1312677089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1312677089 is about 36230.8858434347. The cubic root of 1312677089 is about 1094.9290249584.

The spelling of 1312677089 in words is "one billion, three hundred twelve million, six hundred seventy-seven thousand, eighty-nine".