120989629 has 4 divisors (see below), whose sum is σ = 128106684. Its totient is φ = 113872576.

The previous prime is 120989611. The next prime is 120989633. The reversal of 120989629 is 926989021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 78765625 = 6498^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 120989629 - 2¹⁵ = 120956861 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 (120989669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558502 + ... + 3558535.

It is an arithmetic number, because the mean of its divisors is an integer number (32026671).

Almost surely, 2^120989629 is an apocalyptic number.

It is an amenable number.

120989629 is a deficient number, since it is larger than the sum of its proper divisors (7117055).

120989629 is an equidigital number, since it uses as much as digits as its factorization.

120989629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117054.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 120989629 is about 10999.5285808075. The cubic root of 120989629 is about 494.5946128267.

The spelling of 120989629 in words is "one hundred twenty million, nine hundred eighty-nine thousand, six hundred twenty-nine".