157639528 has 8 divisors (see below), whose sum is σ = 295574130. Its totient is φ = 78819760.

The previous prime is 157639519. The next prime is 157639541. The reversal of 157639528 is 825936751.

It can be written as a sum of positive squares in only one way, i.e., 130827844 + 26811684 = 11438^2 + 5178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 9852463 + ... + 9852478.

Almost surely, 2^157639528 is an apocalyptic number.

It is an amenable number.

157639528 is a deficient number, since it is larger than the sum of its proper divisors (137934602).

157639528 is a wasteful number, since it uses less digits than its factorization.

157639528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19704947 (or 19704943 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 157639528 is about 12555.4580959836. The cubic root of 157639528 is about 540.2005747816.

The spelling of 157639528 in words is "one hundred fifty-seven million, six hundred thirty-nine thousand, five hundred twenty-eight".