1315155560 has 32 divisors (see below), whose sum is σ = 2960768160. Its totient is φ = 525765696.

The previous prime is 1315155553. The next prime is 1315155587. The reversal of 1315155560 is 655515131.

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, 71207 + ... + 87753.

It is an arithmetic number, because the mean of its divisors is an integer number (92524005).

Almost surely, 2^1315155560 is an apocalyptic number.

1315155560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315155560 is an abundant number, since it is smaller than the sum of its proper divisors (1645612600).

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

1315155560 is a wasteful number, since it uses less digits than its factorization.

1315155560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18545 (or 18541 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 32.

The square root of 1315155560 is about 36265.0735556954. The cubic root of 1315155560 is about 1095.6177050357.

The spelling of 1315155560 in words is "one billion, three hundred fifteen million, one hundred fifty-five thousand, five hundred sixty".