109026309 has 16 divisors (see below), whose sum is σ = 170626688. Its totient is φ = 60616512.

The previous prime is 109026293. The next prime is 109026311. The reversal of 109026309 is 903620901.

It is not a de Polignac number, because 109026309 - 2⁴ = 109026293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109026319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69382 + ... + 70935.

It is an arithmetic number, because the mean of its divisors is an integer number (10664168).

Almost surely, 2^109026309 is an apocalyptic number.

It is an amenable number.

109026309 is a deficient number, since it is larger than the sum of its proper divisors (61600379).

109026309 is a wasteful number, since it uses less digits than its factorization.

109026309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140364.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 109026309 is about 10441.5664054777. The cubic root of 109026309 is about 477.7240475223.

The spelling of 109026309 in words is "one hundred nine million, twenty-six thousand, three hundred nine".