1312336477 has 2 divisors, whose sum is σ = 1312336478. Its totient is φ = 1312336476.

The previous prime is 1312336463. The next prime is 1312336511. The reversal of 1312336477 is 7746332131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1268855641 + 43480836 = 35621^2 + 6594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312336477 - 2⁷ = 1312336349 is a prime.

It is a super-3 number, since 3×1312336477³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312336177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656168238 + 656168239.

It is an arithmetic number, because the mean of its divisors is an integer number (656168239).

Almost surely, 2^1312336477 is an apocalyptic number.

It is an amenable number.

1312336477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312336477 is an equidigital number, since it uses as much as digits as its factorization.

1312336477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 37.

The square root of 1312336477 is about 36226.1849633659. The cubic root of 1312336477 is about 1094.8343131084.

The spelling of 1312336477 in words is "one billion, three hundred twelve million, three hundred thirty-six thousand, four hundred seventy-seven".