120125989 has 2 divisors, whose sum is σ = 120125990. Its totient is φ = 120125988.

The previous prime is 120125981. The next prime is 120126001. The reversal of 120125989 is 989521021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 4133089 = 10770^2 + 2033^2 .

It is an emirp because it is prime and its reverse (989521021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120125989 - 2³ = 120125981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120125981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60062994 + 60062995.

It is an arithmetic number, because the mean of its divisors is an integer number (60062995).

Almost surely, 2^120125989 is an apocalyptic number.

It is an amenable number.

120125989 is a deficient number, since it is larger than the sum of its proper divisors (1).

120125989 is an equidigital number, since it uses as much as digits as its factorization.

120125989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 120125989 is about 10960.2002262732. The cubic root of 120125989 is about 493.4149742636.

The spelling of 120125989 in words is "one hundred twenty million, one hundred twenty-five thousand, nine hundred eighty-nine".