109453479 has 4 divisors (see below), whose sum is σ = 145937976. Its totient is φ = 72968984.

The previous prime is 109453457. The next prime is 109453483. The reversal of 109453479 is 974354901.

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-109453479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109453479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109453079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18242244 + ... + 18242249.

It is an arithmetic number, because the mean of its divisors is an integer number (36484494).

Almost surely, 2^109453479 is an apocalyptic number.

109453479 is a deficient number, since it is larger than the sum of its proper divisors (36484497).

109453479 is an equidigital number, since it uses as much as digits as its factorization.

109453479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36484496.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 109453479 is about 10462.0016727202. The cubic root of 109453479 is about 478.3471492433.

The spelling of 109453479 in words is "one hundred nine million, four hundred fifty-three thousand, four hundred seventy-nine".