1218315160 has 32 divisors (see below), whose sum is σ = 2745465840. Its totient is φ = 486569344.

The previous prime is 1218315157. The next prime is 1218315179. The reversal of 1218315160 is 615138121.

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, 2799 + ... + 49441.

Almost surely, 2^1218315160 is an apocalyptic number.

1218315160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218315160 is an abundant number, since it is smaller than the sum of its proper divisors (1527150680).

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

1218315160 is a wasteful number, since it uses less digits than its factorization.

1218315160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47307 (or 47303 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1218315160 is about 34904.3716459701. The cubic root of 1218315160 is about 1068.0376178495.

The spelling of 1218315160 in words is "one billion, two hundred eighteen million, three hundred fifteen thousand, one hundred sixty".