159003381 has 16 divisors (see below), whose sum is σ = 223833600. Its totient is φ = 100121328.

The previous prime is 159003367. The next prime is 159003409. The reversal of 159003381 is 183300951.

It is a happy number.

It is not a de Polignac number, because 159003381 - 2⁷ = 159003253 is a prime.

It is a super-2 number, since 2×159003381² = 50564150338862322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159003311) 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, 15760 + ... + 23798.

It is an arithmetic number, because the mean of its divisors is an integer number (13989600).

Almost surely, 2^159003381 is an apocalyptic number.

It is an amenable number.

159003381 is a deficient number, since it is larger than the sum of its proper divisors (64830219).

159003381 is a wasteful number, since it uses less digits than its factorization.

159003381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 159003381 is about 12609.6542775764. The cubic root of 159003381 is about 541.7539914228.

The spelling of 159003381 in words is "one hundred fifty-nine million, three thousand, three hundred eighty-one".