109479605 has 4 divisors (see below), whose sum is σ = 131375532. Its totient is φ = 87583680.

The previous prime is 109479589. The next prime is 109479607. The reversal of 109479605 is 506974901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32706961 + 76772644 = 5719^2 + 8762^2 .

It is not a de Polignac number, because 109479605 - 2⁴ = 109479589 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 (109479607) 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 3 ways as a sum of consecutive naturals, for example, 10947956 + ... + 10947965.

It is an arithmetic number, because the mean of its divisors is an integer number (32843883).

Almost surely, 2^109479605 is an apocalyptic number.

It is an amenable number.

109479605 is a deficient number, since it is larger than the sum of its proper divisors (21895927).

109479605 is an equidigital number, since it uses as much as digits as its factorization.

109479605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21895926.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 109479605 is about 10463.2502120517. The cubic root of 109479605 is about 478.3852059091.

The spelling of 109479605 in words is "one hundred nine million, four hundred seventy-nine thousand, six hundred five".