157527009 has 6 divisors (see below), whose sum is σ = 227539026. Its totient is φ = 105018000.

The previous prime is 157527001. The next prime is 157527037. The reversal of 157527009 is 900725751.

It can be written as a sum of positive squares in only one way, i.e., 124211025 + 33315984 = 11145^2 + 5772^2 .

It is not a de Polignac number, because 157527009 - 2³ = 157527001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157527001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8751492 + ... + 8751509.

It is an arithmetic number, because the mean of its divisors is an integer number (37923171).

Almost surely, 2^157527009 is an apocalyptic number.

It is an amenable number.

157527009 is a deficient number, since it is larger than the sum of its proper divisors (70012017).

157527009 is a wasteful number, since it uses less digits than its factorization.

157527009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17503007 (or 17503004 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 157527009 is about 12550.9764161997. The cubic root of 157527009 is about 540.0720171440.

The spelling of 157527009 in words is "one hundred fifty-seven million, five hundred twenty-seven thousand, nine".