157072452 has 24 divisors (see below), whose sum is σ = 388061856. Its totient is φ = 49277568.

The previous prime is 157072427. The next prime is 157072453. The reversal of 157072452 is 254270751.

It is not an unprimeable number, because it can be changed into a prime (157072453) 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 7 ways as a sum of consecutive naturals, for example, 384778 + ... + 385185.

It is an arithmetic number, because the mean of its divisors is an integer number (16169244).

Almost surely, 2^157072452 is an apocalyptic number.

157072452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157072452 is an abundant number, since it is smaller than the sum of its proper divisors (230989404).

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

157072452 is a wasteful number, since it uses less digits than its factorization.

157072452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769987 (or 769985 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 157072452 is about 12532.8549022160. The cubic root of 157072452 is about 539.5520427658.

The spelling of 157072452 in words is "one hundred fifty-seven million, seventy-two thousand, four hundred fifty-two".