159579381 has 16 divisors (see below), whose sum is σ = 230819904. Its totient is φ = 97482624.

The previous prime is 159579377. The next prime is 159579383. The reversal of 159579381 is 183975951.

It is not a de Polignac number, because 159579381 - 2² = 159579377 is a prime.

It is a super-2 number, since 2×159579381² = 50931157680686322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 159579381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159579383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9591 + ... + 20276.

It is an arithmetic number, because the mean of its divisors is an integer number (14426244).

Almost surely, 2^159579381 is an apocalyptic number.

It is an amenable number.

159579381 is a deficient number, since it is larger than the sum of its proper divisors (71240523).

159579381 is a wasteful number, since it uses less digits than its factorization.

159579381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30020.

The product of its digits is 340200, while the sum is 48.

The square root of 159579381 is about 12632.4732732747. The cubic root of 159579381 is about 542.4073826614.

The spelling of 159579381 in words is "one hundred fifty-nine million, five hundred seventy-nine thousand, three hundred eighty-one".