157906180 has 12 divisors (see below), whose sum is σ = 331603020. Its totient is φ = 63162464.

The previous prime is 157906141. The next prime is 157906187. The reversal of 157906180 is 81609751.

It can be written as a sum of positive squares in 2 ways, for example, as 33895684 + 124010496 = 5822^2 + 11136^2 .

It is not an unprimeable number, because it can be changed into a prime (157906187) 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, 3947635 + ... + 3947674.

It is an arithmetic number, because the mean of its divisors is an integer number (27633585).

Almost surely, 2^157906180 is an apocalyptic number.

157906180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157906180 is an abundant number, since it is smaller than the sum of its proper divisors (173696840).

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

157906180 is a wasteful number, since it uses less digits than its factorization.

157906180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895318 (or 7895316 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 157906180 is about 12566.0725765849. The cubic root of 157906180 is about 540.5049917059.

The spelling of 157906180 in words is "one hundred fifty-seven million, nine hundred six thousand, one hundred eighty".