120429009 has 6 divisors (see below), whose sum is σ = 173953026. Its totient is φ = 80286000.

The previous prime is 120429007. The next prime is 120429031. The reversal of 120429009 is 900924021.

It can be written as a sum of positive squares in only one way, i.e., 116316225 + 4112784 = 10785^2 + 2028^2 .

It is not a de Polignac number, because 120429009 - 2¹ = 120429007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120429007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6690492 + ... + 6690509.

It is an arithmetic number, because the mean of its divisors is an integer number (28992171).

Almost surely, 2^120429009 is an apocalyptic number.

It is an amenable number.

120429009 is a deficient number, since it is larger than the sum of its proper divisors (53524017).

120429009 is a wasteful number, since it uses less digits than its factorization.

120429009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381007 (or 13381004 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 120429009 is about 10974.0151722148. The cubic root of 120429009 is about 493.8295086616.

The spelling of 120429009 in words is "one hundred twenty million, four hundred twenty-nine thousand, nine".