120965399 has 4 divisors (see below), whose sum is σ = 123015720. Its totient is φ = 118915080.

The previous prime is 120965393. The next prime is 120965401. The reversal of 120965399 is 993569021.

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

It is a cyclic number.

It is not a de Polignac number, because 120965399 - 2¹² = 120961303 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 (120965393) 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, 1025072 + ... + 1025189.

It is an arithmetic number, because the mean of its divisors is an integer number (30753930).

Almost surely, 2^120965399 is an apocalyptic number.

120965399 is a deficient number, since it is larger than the sum of its proper divisors (2050321).

120965399 is an equidigital number, since it uses as much as digits as its factorization.

120965399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050320.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 120965399 is about 10998.4271148196. The cubic root of 120965399 is about 494.5615939427.

The spelling of 120965399 in words is "one hundred twenty million, nine hundred sixty-five thousand, three hundred ninety-nine".