158985039 has 16 divisors (see below), whose sum is σ = 221497344. Its totient is φ = 101244000.

The previous prime is 158985017. The next prime is 158985053. The reversal of 158985039 is 930589851.

It is not a de Polignac number, because 158985039 - 2¹¹ = 158982991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158985059) 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, 80514 + ... + 82464.

It is an arithmetic number, because the mean of its divisors is an integer number (13843584).

Almost surely, 2^158985039 is an apocalyptic number.

158985039 is a deficient number, since it is larger than the sum of its proper divisors (62512305).

158985039 is a wasteful number, since it uses less digits than its factorization.

158985039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158.

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 158985039 is about 12608.9269567240. The cubic root of 158985039 is about 541.7331590905.

The spelling of 158985039 in words is "one hundred fifty-eight million, nine hundred eighty-five thousand, thirty-nine".