158389 has 16 divisors (see below), whose sum is σ = 210816. Its totient is φ = 116160.

The previous prime is 158371. The next prime is 158393. The reversal of 158389 is 983851.

It is not a de Polignac number, because 158389 - 2⁵ = 158357 is a prime.

It is a Duffinian number.

158389 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158329) 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, 9309 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (13176).

2¹⁵⁸³⁸⁹ is an apocalyptic number.

It is an amenable number.

158389 is a deficient number, since it is larger than the sum of its proper divisors (52427).

158389 is an equidigital number, since it uses as much as digits as its factorization.

158389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 35 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 158389 is about 397.9811553328. The cubic root of 158389 is about 54.1055320790.

The spelling of 158389 in words is "one hundred fifty-eight thousand, three hundred eighty-nine".