109439306 has 4 divisors (see below), whose sum is σ = 164158962. Its totient is φ = 54719652.

The previous prime is 109439273. The next prime is 109439311. The reversal of 109439306 is 603934901.

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

It can be written as a sum of positive squares in only one way, i.e., 108347281 + 1092025 = 10409^2 + 1045^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27359825 + ... + 27359828.

Almost surely, 2^109439306 is an apocalyptic number.

109439306 is a deficient number, since it is larger than the sum of its proper divisors (54719656).

109439306 is an equidigital number, since it uses as much as digits as its factorization.

109439306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54719655.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 109439306 is about 10461.3242947535. The cubic root of 109439306 is about 478.3265014854.

The spelling of 109439306 in words is "one hundred nine million, four hundred thirty-nine thousand, three hundred six".