157089 has 4 divisors (see below), whose sum is σ = 209456. Its totient is φ = 104724.

The previous prime is 157081. The next prime is 157103. The reversal of 157089 is 980751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 157089 - 2³ = 157081 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 157089.

It is not an unprimeable number, because it can be changed into a prime (157081) 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, 26179 + ... + 26184.

It is an arithmetic number, because the mean of its divisors is an integer number (52364).

2¹⁵⁷⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

157089 is a deficient number, since it is larger than the sum of its proper divisors (52367).

157089 is an equidigital number, since it uses as much as digits as its factorization.

157089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52366.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 157089 is about 396.3445470799. The cubic root of 157089 is about 53.9570989847.

The spelling of 157089 in words is "one hundred fifty-seven thousand, eighty-nine".