157503717 has 16 divisors (see below), whose sum is σ = 266673280. Its totient is φ = 90002016.

The previous prime is 157503713. The next prime is 157503761. The reversal of 157503717 is 717305751.

It is a happy number.

It is not a de Polignac number, because 157503717 - 2² = 157503713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157503713) 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 15 ways as a sum of consecutive naturals, for example, 416488 + ... + 416865.

It is an arithmetic number, because the mean of its divisors is an integer number (16667080).

Almost surely, 2^157503717 is an apocalyptic number.

It is an amenable number.

157503717 is a deficient number, since it is larger than the sum of its proper divisors (109169563).

157503717 is an equidigital number, since it uses as much as digits as its factorization.

157503717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833369 (or 833363 counting only the distinct ones).

The product of its (nonzero) digits is 25725, while the sum is 36.

The square root of 157503717 is about 12550.0484859621. The cubic root of 157503717 is about 540.0453974179.

The spelling of 157503717 in words is "one hundred fifty-seven million, five hundred three thousand, seven hundred seventeen".