109306243 has 4 divisors (see below), whose sum is σ = 115736040. Its totient is φ = 102876448.

The previous prime is 109306231. The next prime is 109306247. The reversal of 109306243 is 342603901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109306243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109306247) 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, 3214873 + ... + 3214906.

It is an arithmetic number, because the mean of its divisors is an integer number (28934010).

Almost surely, 2^109306243 is an apocalyptic number.

109306243 is a deficient number, since it is larger than the sum of its proper divisors (6429797).

109306243 is an equidigital number, since it uses as much as digits as its factorization.

109306243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429796.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 109306243 is about 10454.9626015591. The cubic root of 109306243 is about 478.1325633275.

The spelling of 109306243 in words is "one hundred nine million, three hundred six thousand, two hundred forty-three".