157521152 has 36 divisors (see below), whose sum is σ = 318772020. Its totient is φ = 77672448.

The previous prime is 157521151. The next prime is 157521157. The reversal of 157521152 is 251125751.

It can be written as a sum of positive squares in 2 ways, for example, as 55591936 + 101929216 = 7456^2 + 10096^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157521151) 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, 14474 + ... + 22902.

Almost surely, 2^157521152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157521152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159386010).

157521152 is an abundant number, since it is smaller than the sum of its proper divisors (161250868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157521152 is an frugal number, since it uses more digits than its factorization.

157521152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518 (or 8504 counting only the distinct ones).

The product of its digits is 3500, while the sum is 29.

The square root of 157521152 is about 12550.7430855707. The cubic root of 157521152 is about 540.0653236019.

The spelling of 157521152 in words is "one hundred fifty-seven million, five hundred twenty-one thousand, one hundred fifty-two".