1568120157 has 12 divisors (see below), whose sum is σ = 2272349664. Its totient is φ = 1042050120.

The previous prime is 1568120149. The next prime is 1568120189. The reversal of 1568120157 is 7510218651.

It is not a de Polignac number, because 1568120157 - 2³ = 1568120149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568120117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277323 + ... + 282920.

It is an arithmetic number, because the mean of its divisors is an integer number (189362472).

Almost surely, 2^1568120157 is an apocalyptic number.

It is an amenable number.

1568120157 is a deficient number, since it is larger than the sum of its proper divisors (704229507).

1568120157 is a wasteful number, since it uses less digits than its factorization.

1568120157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560560 (or 560557 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1568120157 is about 39599.4969286227. The cubic root of 1568120157 is about 1161.7868213913.

The spelling of 1568120157 in words is "one billion, five hundred sixty-eight million, one hundred twenty thousand, one hundred fifty-seven".