109420289 has 4 divisors (see below), whose sum is σ = 119367600. Its totient is φ = 99472980.

The previous prime is 109420231. The next prime is 109420307. The reversal of 109420289 is 982024901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109420289 - 2²⁰ = 108371713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109420229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4973639 + ... + 4973660.

It is an arithmetic number, because the mean of its divisors is an integer number (29841900).

Almost surely, 2^109420289 is an apocalyptic number.

It is an amenable number.

109420289 is a deficient number, since it is larger than the sum of its proper divisors (9947311).

109420289 is an equidigital number, since it uses as much as digits as its factorization.

109420289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947310.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 109420289 is about 10460.4153359224. The cubic root of 109420289 is about 478.2987940058.

The spelling of 109420289 in words is "one hundred nine million, four hundred twenty thousand, two hundred eighty-nine".