159015381 has 32 divisors (see below), whose sum is σ = 257475840. Its totient is φ = 85349376.

The previous prime is 159015361. The next prime is 159015383. The reversal of 159015381 is 183510951.

It is not a de Polignac number, because 159015381 - 2¹⁰ = 159014357 is a prime.

It is a super-2 number, since 2×159015381² = 50571782789150322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159015383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19005 + ... + 26061.

It is an arithmetic number, because the mean of its divisors is an integer number (8046120).

Almost surely, 2^159015381 is an apocalyptic number.

It is an amenable number.

159015381 is a deficient number, since it is larger than the sum of its proper divisors (98460459).

159015381 is a wasteful number, since it uses less digits than its factorization.

159015381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 159015381 is about 12610.1300944915. The cubic root of 159015381 is about 541.7676198214.

The spelling of 159015381 in words is "one hundred fifty-nine million, fifteen thousand, three hundred eighty-one".