157527531 has 16 divisors (see below), whose sum is σ = 266713600. Its totient is φ = 90015624.

The previous prime is 157527527. The next prime is 157527541. The reversal of 157527531 is 135725751.

It is a happy number.

It is not a de Polignac number, because 157527531 - 2² = 157527527 is a prime.

It is a super-2 number, since 2×157527531² = 49629846045911922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157527511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416551 + ... + 416928.

It is an arithmetic number, because the mean of its divisors is an integer number (16669600).

Almost surely, 2^157527531 is an apocalyptic number.

157527531 is a deficient number, since it is larger than the sum of its proper divisors (109186069).

157527531 is an equidigital number, since it uses as much as digits as its factorization.

157527531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833495 (or 833489 counting only the distinct ones).

The product of its digits is 36750, while the sum is 36.

The square root of 157527531 is about 12550.9972113773. The cubic root of 157527531 is about 540.0726136920.

The spelling of 157527531 in words is "one hundred fifty-seven million, five hundred twenty-seven thousand, five hundred thirty-one".