155879 has 4 divisors (see below), whose sum is σ = 157584. Its totient is φ = 154176.

The previous prime is 155863. The next prime is 155887. The reversal of 155879 is 978551.

155879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155879 - 2⁴ = 155863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (39396).

2¹⁵⁵⁸⁷⁹ is an apocalyptic number.

155879 is a deficient number, since it is larger than the sum of its proper divisors (1705).

155879 is an equidigital number, since it uses as much as digits as its factorization.

155879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its digits is 12600, while the sum is 35.

The square root of 155879 is about 394.8151466193. The cubic root of 155879 is about 53.8182043857.

The spelling of 155879 in words is "one hundred fifty-five thousand, eight hundred seventy-nine".