109109109 has 8 divisors (see below), whose sum is σ = 146813920. Its totient is φ = 72071856.

The previous prime is 109109101. The next prime is 109109131. The reversal of 109109109 is 901901901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109109109 - 2³ = 109109101 is a prime.

It is a Duffinian number.

109109109 is a modest number, since divided by 109109 gives 109 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109109101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166507 + ... + 167160.

It is an arithmetic number, because the mean of its divisors is an integer number (18351740).

Almost surely, 2^109109109 is an apocalyptic number.

It is an amenable number.

109109109 is a deficient number, since it is larger than the sum of its proper divisors (37704811).

109109109 is a wasteful number, since it uses less digits than its factorization.

109109109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333779.

The product of its (nonzero) digits is 729, while the sum is 30.

The square root of 109109109 is about 10445.5305753226. The cubic root of 109109109 is about 477.8449527186.

The spelling of 109109109 in words is "one hundred nine million, one hundred nine thousand, one hundred nine".