1315555156 has 12 divisors (see below), whose sum is σ = 2323738368. Its totient is φ = 651629912.

The previous prime is 1315555147. The next prime is 1315555169. The reversal of 1315555156 is 6515555131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536436 + ... + 1537291.

It is an arithmetic number, because the mean of its divisors is an integer number (193644864).

Almost surely, 2^1315555156 is an apocalyptic number.

It is an amenable number.

1315555156 is a deficient number, since it is larger than the sum of its proper divisors (1008183212).

1315555156 is a wasteful number, since it uses less digits than its factorization.

1315555156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073838 (or 3073836 counting only the distinct ones).

The product of its digits is 56250, while the sum is 37.

The square root of 1315555156 is about 36270.5825153112. The cubic root of 1315555156 is about 1095.7286577201.

The spelling of 1315555156 in words is "one billion, three hundred fifteen million, five hundred fifty-five thousand, one hundred fifty-six".