1315657852 has 6 divisors (see below), whose sum is σ = 2302401248. Its totient is φ = 657828924.

The previous prime is 1315657843. The next prime is 1315657873. The reversal of 1315657852 is 2587565131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1315657799 and 1315657808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164457228 + ... + 164457235.

Almost surely, 2^1315657852 is an apocalyptic number.

It is an amenable number.

1315657852 is a deficient number, since it is larger than the sum of its proper divisors (986743396).

1315657852 is a wasteful number, since it uses less digits than its factorization.

1315657852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328914467 (or 328914465 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 1315657852 is about 36271.9981804146. The cubic root of 1315657852 is about 1095.7571688830.

The spelling of 1315657852 in words is "one billion, three hundred fifteen million, six hundred fifty-seven thousand, eight hundred fifty-two".