109109999 has 8 divisors (see below), whose sum is σ = 114398592. Its totient is φ = 103866840.

The previous prime is 109109993. The next prime is 109110013. The reversal of 109109999 is 999901901.

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

It is a cyclic number.

It is not a de Polignac number, because 109109999 - 2⁸ = 109109743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109109993) 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, 6389 + ... + 16094.

It is an arithmetic number, because the mean of its divisors is an integer number (14299824).

Almost surely, 2^109109999 is an apocalyptic number.

109109999 is a deficient number, since it is larger than the sum of its proper divisors (5288593).

109109999 is a wasteful number, since it uses less digits than its factorization.

109109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22717.

The product of its (nonzero) digits is 59049, while the sum is 47.

The square root of 109109999 is about 10445.5731771885. The cubic root of 109109999 is about 477.8462519711.

The spelling of 109109999 in words is "one hundred nine million, one hundred nine thousand, nine hundred ninety-nine".