1157215168 has 28 divisors (see below), whose sum is σ = 2297645392. Its totient is φ = 578280960.

The previous prime is 1157215127. The next prime is 1157215181. The reversal of 1157215168 is 8615127511.

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, 142021 + ... + 149947.

It is an arithmetic number, because the mean of its divisors is an integer number (82058764).

Almost surely, 2^1157215168 is an apocalyptic number.

It is an amenable number.

1157215168 is a deficient number, since it is larger than the sum of its proper divisors (1140430224).

1157215168 is an equidigital number, since it uses as much as digits as its factorization.

1157215168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220 (or 10210 counting only the distinct ones).

The product of its digits is 16800, while the sum is 37.

The square root of 1157215168 is about 34017.8654239210. The cubic root of 1157215168 is about 1049.8760754728.

The spelling of 1157215168 in words is "one billion, one hundred fifty-seven million, two hundred fifteen thousand, one hundred sixty-eight".