1315906256 has 40 divisors (see below), whose sum is σ = 3067154880. Its totient is φ = 534276864.

The previous prime is 1315906201. The next prime is 1315906271. The reversal of 1315906256 is 6526095131.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 307061 + ... + 311316.

It is an arithmetic number, because the mean of its divisors is an integer number (76678872).

Almost surely, 2^1315906256 is an apocalyptic number.

1315906256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1315906256 is an abundant number, since it is smaller than the sum of its proper divisors (1751248624).

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

1315906256 is a wasteful number, since it uses less digits than its factorization.

1315906256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618411 (or 618405 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 1315906256 is about 36275.4222029186. The cubic root of 1315906256 is about 1095.8261263593.

The spelling of 1315906256 in words is "one billion, three hundred fifteen million, nine hundred six thousand, two hundred fifty-six".