158987339 has 16 divisors (see below), whose sum is σ = 190356480. Its totient is φ = 129829920.

The previous prime is 158987329. The next prime is 158987347. The reversal of 158987339 is 933789851.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 158987339 - 2²⁰ = 157938763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158987329) 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, 41474 + ... + 45144.

It is an arithmetic number, because the mean of its divisors is an integer number (11897280).

Almost surely, 2^158987339 is an apocalyptic number.

158987339 is a deficient number, since it is larger than the sum of its proper divisors (31369141).

158987339 is a wasteful number, since it uses less digits than its factorization.

158987339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970.

The product of its digits is 1632960, while the sum is 53.

The square root of 158987339 is about 12609.0181616175. The cubic root of 158987339 is about 541.7357714542.

The spelling of 158987339 in words is "one hundred fifty-eight million, nine hundred eighty-seven thousand, three hundred thirty-nine".