120364609 has 2 divisors, whose sum is σ = 120364610. Its totient is φ = 120364608.

The previous prime is 120364591. The next prime is 120364613. The reversal of 120364609 is 906463021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75742209 + 44622400 = 8703^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 120364609 - 2⁷ = 120364481 is a prime.

It is not a weakly prime, because it can be changed into another prime (120364679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60182304 + 60182305.

It is an arithmetic number, because the mean of its divisors is an integer number (60182305).

Almost surely, 2^120364609 is an apocalyptic number.

It is an amenable number.

120364609 is a deficient number, since it is larger than the sum of its proper divisors (1).

120364609 is an equidigital number, since it uses as much as digits as its factorization.

120364609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 120364609 is about 10971.0805757683. The cubic root of 120364609 is about 493.7414670533.

The spelling of 120364609 in words is "one hundred twenty million, three hundred sixty-four thousand, six hundred nine".