109443659 has 8 divisors (see below), whose sum is σ = 118025712. Its totient is φ = 100884960.

The previous prime is 109443613. The next prime is 109443673. The reversal of 109443659 is 956344901.

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 109443659 - 2²⁴ = 92666443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109443689) 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, 4604 + ... + 15494.

It is an arithmetic number, because the mean of its divisors is an integer number (14753214).

Almost surely, 2^109443659 is an apocalyptic number.

109443659 is a deficient number, since it is larger than the sum of its proper divisors (8582053).

109443659 is a wasteful number, since it uses less digits than its factorization.

109443659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11677.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 109443659 is about 10461.5323447380. The cubic root of 109443659 is about 478.3328432887.

The spelling of 109443659 in words is "one hundred nine million, four hundred forty-three thousand, six hundred fifty-nine".