109223479 has 4 divisors (see below), whose sum is σ = 109266480. Its totient is φ = 109180480.

The previous prime is 109223449. The next prime is 109223497. The reversal of 109223479 is 974322901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974322901 = 31 ⋅31429771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109223479 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 (109223449) 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, 17434 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (27316620).

Almost surely, 2^109223479 is an apocalyptic number.

109223479 is a deficient number, since it is larger than the sum of its proper divisors (43001).

109223479 is an equidigital number, since it uses as much as digits as its factorization.

109223479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43000.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 109223479 is about 10451.0037316996. The cubic root of 109223479 is about 478.0118561160.

The spelling of 109223479 in words is "one hundred nine million, two hundred twenty-three thousand, four hundred seventy-nine".