109364405 has 4 divisors (see below), whose sum is σ = 131237292. Its totient is φ = 87491520.

The previous prime is 109364401. The next prime is 109364429. The reversal of 109364405 is 504463901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504463901 = 79 ⋅6385619.

It can be written as a sum of positive squares in 2 ways, for example, as 52678564 + 56685841 = 7258^2 + 7529^2 .

It is not a de Polignac number, because 109364405 - 2² = 109364401 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 (109364401) 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, 10936436 + ... + 10936445.

It is an arithmetic number, because the mean of its divisors is an integer number (32809323).

Almost surely, 2^109364405 is an apocalyptic number.

It is an amenable number.

109364405 is a deficient number, since it is larger than the sum of its proper divisors (21872887).

109364405 is an equidigital number, since it uses as much as digits as its factorization.

109364405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21872886.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 109364405 is about 10457.7437815238. The cubic root of 109364405 is about 478.2173532852.

The spelling of 109364405 in words is "one hundred nine million, three hundred sixty-four thousand, four hundred five".