157571232 has 192 divisors, whose sum is σ = 539529984. Its totient is φ = 39075840.

The previous prime is 157571231. The next prime is 157571243. The reversal of 157571232 is 232175751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 157571193 and 157571202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157571231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147982 + ... + 149042.

It is an arithmetic number, because the mean of its divisors is an integer number (2810052).

Almost surely, 2^157571232 is an apocalyptic number.

157571232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157571232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269764992).

157571232 is an abundant number, since it is smaller than the sum of its proper divisors (381958752).

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

157571232 is a wasteful number, since it uses less digits than its factorization.

157571232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1103 counting only the distinct ones).

The product of its digits is 14700, while the sum is 33.

The square root of 157571232 is about 12552.7380280160. The cubic root of 157571232 is about 540.1225510605.

The spelling of 157571232 in words is "one hundred fifty-seven million, five hundred seventy-one thousand, two hundred thirty-two".