120226509 has 24 divisors (see below), whose sum is σ = 196865760. Its totient is φ = 70090272.

The previous prime is 120226493. The next prime is 120226511. The reversal of 120226509 is 905622021.

120226509 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 2 + 650 + 9 = 666.

It is not a de Polignac number, because 120226509 - 2⁴ = 120226493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120226529) 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 in 23 ways as a sum of consecutive naturals, for example, 24819 + ... + 29264.

It is an arithmetic number, because the mean of its divisors is an integer number (8202740).

Almost surely, 2^120226509 is an apocalyptic number.

120226509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

120226509 is a deficient number, since it is larger than the sum of its proper divisors (76639251).

120226509 is a wasteful number, since it uses less digits than its factorization.

120226509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54121 (or 54118 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 120226509 is about 10964.7849500116. The cubic root of 120226509 is about 493.5525638218.

The spelling of 120226509 in words is "one hundred twenty million, two hundred twenty-six thousand, five hundred nine".