1315670256 has 160 divisors (see below), whose sum is σ = 4128307200. Its totient is φ = 399375360.

The previous prime is 1315670249. The next prime is 1315670281. The reversal of 1315670256 is 6520765131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1315670256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224775 + ... + 230553.

It is an arithmetic number, because the mean of its divisors is an integer number (25801920).

Almost surely, 2^1315670256 is an apocalyptic number.

1315670256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315670256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064153600).

1315670256 is an abundant number, since it is smaller than the sum of its proper divisors (2812636944).

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

1315670256 is a wasteful number, since it uses less digits than its factorization.

1315670256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844 (or 5832 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1315670256 is about 36272.1691659046. The cubic root of 1315670256 is about 1095.7606124656.

The spelling of 1315670256 in words is "one billion, three hundred fifteen million, six hundred seventy thousand, two hundred fifty-six".