157509872 has 20 divisors (see below), whose sum is σ = 328650840. Its totient is φ = 72696768.

The previous prime is 157509871. The next prime is 157509883. The reversal of 157509872 is 278905751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157509871) by changing a digit.

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, 378422 + ... + 378837.

It is an arithmetic number, because the mean of its divisors is an integer number (16432542).

Almost surely, 2^157509872 is an apocalyptic number.

It is an amenable number.

157509872 is an abundant number, since it is smaller than the sum of its proper divisors (171140968).

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

157509872 is a wasteful number, since it uses less digits than its factorization.

157509872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757280 (or 757274 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 44.

The square root of 157509872 is about 12550.2937017426. The cubic root of 157509872 is about 540.0524320374.

The spelling of 157509872 in words is "one hundred fifty-seven million, five hundred nine thousand, eight hundred seventy-two".