157507 has 4 divisors (see below), whose sum is σ = 180016. Its totient is φ = 135000.

The previous prime is 157489. The next prime is 157513. The reversal of 157507 is 705751.

157507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157507 - 2¹⁵ = 124739 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (157007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11244 + ... + 11257.

It is an arithmetic number, because the mean of its divisors is an integer number (45004).

2¹⁵⁷⁵⁰⁷ is an apocalyptic number.

157507 is a deficient number, since it is larger than the sum of its proper divisors (22509).

157507 is an equidigital number, since it uses as much as digits as its factorization.

157507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22508.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 157507 is about 396.8715157327. The cubic root of 157507 is about 54.0049149619.

The spelling of 157507 in words is "one hundred fifty-seven thousand, five hundred seven".