157445232 has 160 divisors (see below), whose sum is σ = 484492800. Its totient is φ = 44029440.

The previous prime is 157445219. The next prime is 157445237. The reversal of 157445232 is 232544751.

It is a junction number, because it is equal to n+sod(n) for n = 157445193 and 157445202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157445237) 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, 1201807 + ... + 1201937.

It is an arithmetic number, because the mean of its divisors is an integer number (3028080).

Almost surely, 2^157445232 is an apocalyptic number.

157445232 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 157445232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242246400).

157445232 is an abundant number, since it is smaller than the sum of its proper divisors (327047568).

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

157445232 is a wasteful number, since it uses less digits than its factorization.

157445232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 216 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 157445232 is about 12547.7181989396. The cubic root of 157445232 is about 539.9785451009.

Adding to 157445232 its reverse (232544751), we get a palindrome (389989983).

The spelling of 157445232 in words is "one hundred fifty-seven million, four hundred forty-five thousand, two hundred thirty-two".