1315995968 has 56 divisors (see below), whose sum is σ = 3114275712. Its totient is φ = 539472384.

The previous prime is 1315995907. The next prime is 1315995997. The reversal of 1315995968 is 8695995131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53555 + ... + 74162.

Almost surely, 2^1315995968 is an apocalyptic number.

It is an amenable number.

1315995968 is an abundant number, since it is smaller than the sum of its proper divisors (1798279744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315995968 is a wasteful number, since it uses less digits than its factorization.

1315995968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127759 (or 127749 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 56.

The square root of 1315995968 is about 36276.6587215526. The cubic root of 1315995968 is about 1095.8510284673.

The spelling of 1315995968 in words is "one billion, three hundred fifteen million, nine hundred ninety-five thousand, nine hundred sixty-eight".