159049881 has 12 divisors (see below), whose sum is σ = 229867300. Its totient is φ = 105973920.

The previous prime is 159049861. The next prime is 159049883. The reversal of 159049881 is 188940951.

159049881 is a `hidden beast` number, since 159 + 0 + 498 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119246400 + 39803481 = 10920^2 + 6309^2 .

It is not a de Polignac number, because 159049881 - 2²⁵ = 125495449 is a prime.

It is a super-2 number, since 2×159049881² = 50593729292228322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159049883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17295 + ... + 24843.

Almost surely, 2^159049881 is an apocalyptic number.

It is an amenable number.

159049881 is a deficient number, since it is larger than the sum of its proper divisors (70817419).

159049881 is a wasteful number, since it uses less digits than its factorization.

159049881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896 (or 9893 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 159049881 is about 12611.4979681242. The cubic root of 159049881 is about 541.8067976485.

The spelling of 159049881 in words is "one hundred fifty-nine million, forty-nine thousand, eight hundred eighty-one".