157689124 has 24 divisors (see below), whose sum is σ = 285962040. Its totient is φ = 75995136.

The previous prime is 157689109. The next prime is 157689131. The reversal of 157689124 is 421986751.

It can be written as a sum of positive squares in 4 ways, for example, as 186624 + 157502500 = 432^2 + 12550^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128964 + ... + 130180.

It is an arithmetic number, because the mean of its divisors is an integer number (11915085).

Almost surely, 2^157689124 is an apocalyptic number.

It is an amenable number.

157689124 is a deficient number, since it is larger than the sum of its proper divisors (128272916).

157689124 is a wasteful number, since it uses less digits than its factorization.

157689124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2365 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 157689124 is about 12557.4330179380. The cubic root of 157689124 is about 540.2572208501.

The spelling of 157689124 in words is "one hundred fifty-seven million, six hundred eighty-nine thousand, one hundred twenty-four".