120983609 has 4 divisors (see below), whose sum is σ = 121907280. Its totient is φ = 120059940.

The previous prime is 120983591. The next prime is 120983617. The reversal of 120983609 is 906389021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120983609 - 2⁸ = 120983353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120983699) 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, 461639 + ... + 461900.

It is an arithmetic number, because the mean of its divisors is an integer number (30476820).

Almost surely, 2^120983609 is an apocalyptic number.

It is an amenable number.

120983609 is a deficient number, since it is larger than the sum of its proper divisors (923671).

120983609 is an equidigital number, since it uses as much as digits as its factorization.

120983609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923670.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 120983609 is about 10999.2549293123. The cubic root of 120983609 is about 494.5864096196.

The spelling of 120983609 in words is "one hundred twenty million, nine hundred eighty-three thousand, six hundred nine".