1215357160 has 32 divisors (see below), whose sum is σ = 2798151840. Its totient is φ = 474836544.

The previous prime is 1215357133. The next prime is 1215357163. The reversal of 1215357160 is 617535121.

It is not an unprimeable number, because it can be changed into a prime (1215357163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351582 + ... + 355021.

It is an arithmetic number, because the mean of its divisors is an integer number (87442245).

Almost surely, 2^1215357160 is an apocalyptic number.

1215357160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215357160 is an abundant number, since it is smaller than the sum of its proper divisors (1582794680).

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

1215357160 is a wasteful number, since it uses less digits than its factorization.

1215357160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706657 (or 706653 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1215357160 is about 34861.9729791646. The cubic root of 1215357160 is about 1067.1725391292.

The spelling of 1215357160 in words is "one billion, two hundred fifteen million, three hundred fifty-seven thousand, one hundred sixty".