1315906956 has 108 divisors (see below), whose sum is σ = 4167111312. Its totient is φ = 347046336.

The previous prime is 1315906951. The next prime is 1315906957. The reversal of 1315906956 is 6596095131.

1315906956 is a `hidden beast` number, since 1 + 3 + 1 + 590 + 6 + 9 + 56 = 666.

1315906956 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1315906956² = 3463222233698371872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315906951) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5760 + ... + 51623.

It is an arithmetic number, because the mean of its divisors is an integer number (38584364).

Almost surely, 2^1315906956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315906956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2083555656).

1315906956 is an abundant number, since it is smaller than the sum of its proper divisors (2851204356).

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

1315906956 is a wasteful number, since it uses less digits than its factorization.

1315906956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57420 (or 57408 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1315906956 is about 36275.4318513233. The cubic root of 1315906956 is about 1095.8263206685.

The spelling of 1315906956 in words is "one billion, three hundred fifteen million, nine hundred six thousand, nine hundred fifty-six".