120889 has 2 divisors, whose sum is σ = 120890. Its totient is φ = 120888.

The previous prime is 120877. The next prime is 120899. The reversal of 120889 is 988021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110889 + 10000 = 333^2 + 100^2 .

It is an emirp because it is prime and its reverse (988021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120889 is a prime.

It is a super-2 number, since 2×120889² = 29228300642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60444 + 60445.

It is an arithmetic number, because the mean of its divisors is an integer number (60445).

2¹²⁰⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

120889 is a deficient number, since it is larger than the sum of its proper divisors (1).

120889 is an equidigital number, since it uses as much as digits as its factorization.

120889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 120889 is about 347.6909547285. The cubic root of 120889 is about 49.4457454057.

The spelling of 120889 in words is "one hundred twenty thousand, eight hundred eighty-nine".