1313969517 has 48 divisors (see below), whose sum is σ = 2230580352. Its totient is φ = 729699840.

The previous prime is 1313969513. The next prime is 1313969521. The reversal of 1313969517 is 7159693131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1313969513) and next prime (1313969521).

It is not a de Polignac number, because 1313969517 - 2² = 1313969513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313969513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 792153 + ... + 793809.

It is an arithmetic number, because the mean of its divisors is an integer number (46470424).

Almost surely, 2^1313969517 is an apocalyptic number.

It is an amenable number.

1313969517 is a deficient number, since it is larger than the sum of its proper divisors (916610835).

1313969517 is a wasteful number, since it uses less digits than its factorization.

1313969517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2015 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 1313969517 is about 36248.7174531734. The cubic root of 1313969517 is about 1095.2882533796.

The spelling of 1313969517 in words is "one billion, three hundred thirteen million, nine hundred sixty-nine thousand, five hundred seventeen".