120012989 has 4 divisors (see below), whose sum is σ = 120035424. Its totient is φ = 119990556.

The previous prime is 120012983. The next prime is 120013001. The reversal of 120012989 is 989210021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 989210021 = 173 ⋅5717977.

It is a cyclic number.

It is not a de Polignac number, because 120012989 - 2⁴ = 120012973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012983) 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, 1994 + ... + 15620.

It is an arithmetic number, because the mean of its divisors is an integer number (30008856).

Almost surely, 2^120012989 is an apocalyptic number.

It is an amenable number.

120012989 is a deficient number, since it is larger than the sum of its proper divisors (22435).

120012989 is an equidigital number, since it uses as much as digits as its factorization.

120012989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 120012989 is about 10955.0439980860. The cubic root of 120012989 is about 493.2602106844.

The spelling of 120012989 in words is "one hundred twenty million, twelve thousand, nine hundred eighty-nine".