156889 has 4 divisors (see below), whose sum is σ = 158080. Its totient is φ = 155700.

The previous prime is 156887. The next prime is 156899. The reversal of 156889 is 988651.

156889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

156889 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

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 a cyclic number.

It is not a de Polignac number, because 156889 - 2¹ = 156887 is a prime.

It is a super-2 number, since 2×156889² = 49228316642, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 7 and base 10.

It is not an unprimeable number, because it can be changed into a prime (156887) 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, 369 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (39520).

2¹⁵⁶⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

156889 is a deficient number, since it is larger than the sum of its proper divisors (1191).

156889 is a wasteful number, since it uses less digits than its factorization.

156889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its digits is 17280, while the sum is 37.

The square root of 156889 is about 396.0921609929. The cubic root of 156889 is about 53.9341905214.

The spelling of 156889 in words is "one hundred fifty-six thousand, eight hundred eighty-nine".