109439345 has 8 divisors (see below), whose sum is σ = 131751360. Its totient is φ = 87268720.

The previous prime is 109439339. The next prime is 109439357. The reversal of 109439345 is 543934901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109439345 - 2²⁶ = 42330481 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109439299 and 109439308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33635 + ... + 36744.

It is an arithmetic number, because the mean of its divisors is an integer number (16468920).

Almost surely, 2^109439345 is an apocalyptic number.

It is an amenable number.

109439345 is a deficient number, since it is larger than the sum of its proper divisors (22312015).

109439345 is an equidigital number, since it uses as much as digits as its factorization.

109439345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70695.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 109439345 is about 10461.3261587621. The cubic root of 109439345 is about 478.3265583045.

The spelling of 109439345 in words is "one hundred nine million, four hundred thirty-nine thousand, three hundred forty-five".