157368609 has 32 divisors (see below), whose sum is σ = 248451840. Its totient is φ = 98102016.

The previous prime is 157368557. The next prime is 157368611. The reversal of 157368609 is 906863751.

It is a happy number.

157368609 is a `hidden beast` number, since 1 + 5 + 7 + 36 + 8 + 609 = 666.

It is not a de Polignac number, because 157368609 - 2⁸ = 157368353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157368649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75627 + ... + 77679.

It is an arithmetic number, because the mean of its divisors is an integer number (7764120).

Almost surely, 2^157368609 is an apocalyptic number.

It is an amenable number.

157368609 is a deficient number, since it is larger than the sum of its proper divisors (91083231).

157368609 is a wasteful number, since it uses less digits than its factorization.

157368609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 157368609 is about 12544.6645630722. The cubic root of 157368609 is about 539.8909347634.

The spelling of 157368609 in words is "one hundred fifty-seven million, three hundred sixty-eight thousand, six hundred nine".