157531115 has 16 divisors (see below), whose sum is σ = 216431040. Its totient is φ = 107827200.

The previous prime is 157531093. The next prime is 157531133. The reversal of 157531115 is 511135751.

It is not a de Polignac number, because 157531115 - 2¹⁰ = 157530091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17291 + ... + 24779.

It is an arithmetic number, because the mean of its divisors is an integer number (13526940).

Almost surely, 2^157531115 is an apocalyptic number.

157531115 is a deficient number, since it is larger than the sum of its proper divisors (58899925).

157531115 is an equidigital number, since it uses as much as digits as its factorization.

157531115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102.

The product of its digits is 2625, while the sum is 29.

The square root of 157531115 is about 12551.1399880648. The cubic root of 157531115 is about 540.0767094958.

Adding to 157531115 its reverse (511135751), we get a palindrome (668666866).

The spelling of 157531115 in words is "one hundred fifty-seven million, five hundred thirty-one thousand, one hundred fifteen".