1312403917 has 8 divisors (see below), whose sum is σ = 1434851712. Its totient is φ = 1190479200.

The previous prime is 1312403887. The next prime is 1312403923. The reversal of 1312403917 is 7193042131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312403917 - 2¹⁵ = 1312371149 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 (1312407917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125509 + ... + 135562.

It is an arithmetic number, because the mean of its divisors is an integer number (179356464).

Almost surely, 2^1312403917 is an apocalyptic number.

It is an amenable number.

1312403917 is a deficient number, since it is larger than the sum of its proper divisors (122447795).

1312403917 is a wasteful number, since it uses less digits than its factorization.

1312403917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261539.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1312403917 is about 36227.1157698208. The cubic root of 1312403917 is about 1094.8530670287.

The spelling of 1312403917 in words is "one billion, three hundred twelve million, four hundred three thousand, nine hundred seventeen".