109220989 has 8 divisors (see below), whose sum is σ = 115616160. Its totient is φ = 103001136.

The previous prime is 109220983. The next prime is 109221001. The reversal of 109220989 is 989022901.

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 109220989 - 2⁵ = 109220957 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 (109220983) 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 7 ways as a sum of consecutive naturals, for example, 42547 + ... + 45040.

It is an arithmetic number, because the mean of its divisors is an integer number (14452020).

Almost surely, 2^109220989 is an apocalyptic number.

It is an amenable number.

109220989 is a deficient number, since it is larger than the sum of its proper divisors (6395171).

109220989 is an equidigital number, since it uses as much as digits as its factorization.

109220989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87659.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 109220989 is about 10450.8846037070. The cubic root of 109220989 is about 478.0082236291.

The spelling of 109220989 in words is "one hundred nine million, two hundred twenty thousand, nine hundred eighty-nine".