109913439 has 4 divisors (see below), whose sum is σ = 146551256. Its totient is φ = 73275624.

The previous prime is 109913413. The next prime is 109913443. The reversal of 109913439 is 934319901.

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

It is not a de Polignac number, because 109913439 - 2⁹ = 109912927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109913397 and 109913406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109913459) 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, 18318904 + ... + 18318909.

It is an arithmetic number, because the mean of its divisors is an integer number (36637814).

Almost surely, 2^109913439 is an apocalyptic number.

109913439 is a deficient number, since it is larger than the sum of its proper divisors (36637817).

109913439 is an equidigital number, since it uses as much as digits as its factorization.

109913439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36637816.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 109913439 is about 10483.9610357918. The cubic root of 109913439 is about 479.0162708780.

The spelling of 109913439 in words is "one hundred nine million, nine hundred thirteen thousand, four hundred thirty-nine".