159087381 has 8 divisors (see below), whose sum is σ = 218959104. Its totient is φ = 102636960.

The previous prime is 159087289. The next prime is 159087403. The reversal of 159087381 is 183780951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159087381 - 2¹⁴ = 159070997 is a prime.

It is a super-2 number, since 2×159087381² = 50617589586878322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159087281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855216 + ... + 855401.

It is an arithmetic number, because the mean of its divisors is an integer number (27369888).

Almost surely, 2^159087381 is an apocalyptic number.

It is an amenable number.

159087381 is a deficient number, since it is larger than the sum of its proper divisors (59871723).

159087381 is a wasteful number, since it uses less digits than its factorization.

159087381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710651.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 159087381 is about 12612.9846190345. The cubic root of 159087381 is about 541.8493758179.

The spelling of 159087381 in words is "one hundred fifty-nine million, eighty-seven thousand, three hundred eighty-one".