155089 has 8 divisors (see below), whose sum is σ = 176832. Its totient is φ = 134640.

The previous prime is 155087. The next prime is 155119. The reversal of 155089 is 980551.

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

It is not a de Polignac number, because 155089 - 2¹ = 155087 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (155081) 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, 54 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (22104).

2¹⁵⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

155089 is a deficient number, since it is larger than the sum of its proper divisors (21743).

155089 is a wasteful number, since it uses less digits than its factorization.

155089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 155089 is about 393.8134075930. The cubic root of 155089 is about 53.7271328725.

The spelling of 155089 in words is "one hundred fifty-five thousand, eighty-nine".