157168072 has 16 divisors (see below), whose sum is σ = 295159500. Its totient is φ = 78458880.

The previous prime is 157168069. The next prime is 157168087. The reversal of 157168072 is 270861751.

It can be written as a sum of positive squares in 2 ways, for example, as 155900196 + 1267876 = 12486^2 + 1126^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10197 + ... + 20452.

Almost surely, 2^157168072 is an apocalyptic number.

It is an amenable number.

157168072 is a deficient number, since it is larger than the sum of its proper divisors (137991428).

157168072 is a wasteful number, since it uses less digits than its factorization.

157168072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31296 (or 31292 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 157168072 is about 12536.6690950986. The cubic root of 157168072 is about 539.6615071140.

The spelling of 157168072 in words is "one hundred fifty-seven million, one hundred sixty-eight thousand, seventy-two".