158289 has 8 divisors (see below), whose sum is σ = 222240. Its totient is φ = 99936.

The previous prime is 158269. The next prime is 158293. The reversal of 158289 is 982851.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158289 - 2⁷ = 158161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (27780).

2¹⁵⁸²⁸⁹ is an apocalyptic number.

158289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

158289 is a deficient number, since it is larger than the sum of its proper divisors (63951).

158289 is a wasteful number, since it uses less digits than its factorization.

158289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799.

The product of its digits is 5760, while the sum is 33.

The square root of 158289 is about 397.8555014072. The cubic root of 158289 is about 54.0941430468.

The spelling of 158289 in words is "one hundred fifty-eight thousand, two hundred eighty-nine".