1312465517 has 8 divisors (see below), whose sum is σ = 1470477792. Its totient is φ = 1160902800.

The previous prime is 1312465513. The next prime is 1312465523. The reversal of 1312465517 is 7155642131.

It is a happy number.

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 1312465517 - 2² = 1312465513 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 (1312465513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611959 + ... + 1612772.

It is an arithmetic number, because the mean of its divisors is an integer number (183809724).

Almost surely, 2^1312465517 is an apocalyptic number.

It is an amenable number.

1312465517 is a deficient number, since it is larger than the sum of its proper divisors (158012275).

1312465517 is a wasteful number, since it uses less digits than its factorization.

1312465517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224779.

The product of its digits is 25200, while the sum is 35.

The square root of 1312465517 is about 36227.9659517340. The cubic root of 1312465517 is about 1094.8701963827.

The spelling of 1312465517 in words is "one billion, three hundred twelve million, four hundred sixty-five thousand, five hundred seventeen".