157505232 has 20 divisors (see below), whose sum is σ = 406888640. Its totient is φ = 52501728.

The previous prime is 157505197. The next prime is 157505237. The reversal of 157505232 is 232505751.

It is a self number, because there is not a number n which added to its sum of digits gives 157505232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157505237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640632 + ... + 1640727.

It is an arithmetic number, because the mean of its divisors is an integer number (20344432).

Almost surely, 2^157505232 is an apocalyptic number.

157505232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157505232 is an abundant number, since it is smaller than the sum of its proper divisors (249383408).

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

157505232 is a wasteful number, since it uses less digits than its factorization.

157505232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281370 (or 3281364 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 157505232 is about 12550.1088441495. The cubic root of 157505232 is about 540.0471289456.

The spelling of 157505232 in words is "one hundred fifty-seven million, five hundred five thousand, two hundred thirty-two".