157261885 has 12 divisors (see below), whose sum is σ = 207430524. Its totient is φ = 114371840.

The previous prime is 157261861. The next prime is 157261891. The reversal of 157261885 is 588162751.

It can be written as a sum of positive squares in 2 ways, for example, as 29888089 + 127373796 = 5467^2 + 11286^2 .

It is not a de Polignac number, because 157261885 - 2⁷ = 157261757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129364 + ... + 130573.

It is an arithmetic number, because the mean of its divisors is an integer number (17285877).

Almost surely, 2^157261885 is an apocalyptic number.

It is an amenable number.

157261885 is a deficient number, since it is larger than the sum of its proper divisors (50168639).

157261885 is a wasteful number, since it uses less digits than its factorization.

157261885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259964 (or 259953 counting only the distinct ones).

The product of its digits is 134400, while the sum is 43.

The square root of 157261885 is about 12540.4100810141. The cubic root of 157261885 is about 539.7688596965.

The spelling of 157261885 in words is "one hundred fifty-seven million, two hundred sixty-one thousand, eight hundred eighty-five".