157168725 has 36 divisors (see below), whose sum is σ = 302284224. Its totient is φ = 71846880.

The previous prime is 157168673. The next prime is 157168747. The reversal of 157168725 is 527861751.

157168725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157168725 - 2¹⁶ = 157103189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17709 + ... + 25058.

It is an arithmetic number, because the mean of its divisors is an integer number (8396784).

Almost surely, 2^157168725 is an apocalyptic number.

157168725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157168725 is a deficient number, since it is larger than the sum of its proper divisors (145115499).

157168725 is a wasteful number, since it uses less digits than its factorization.

157168725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42794 (or 42782 counting only the distinct ones).

The product of its digits is 117600, while the sum is 42.

The square root of 157168725 is about 12536.6951386719. The cubic root of 157168725 is about 539.6622545060.

The spelling of 157168725 in words is "one hundred fifty-seven million, one hundred sixty-eight thousand, seven hundred twenty-five".