109345 has 8 divisors (see below), whose sum is σ = 138240. Its totient is φ = 82800.

The previous prime is 109331. The next prime is 109357. The reversal of 109345 is 543901.

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

It is not a de Polignac number, because 109345 - 2⁵ = 109313 is a prime.

It is an Ulam number.

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, 481 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2¹⁰⁹³⁴⁵ is an apocalyptic number.

It is an amenable number.

109345 is a deficient number, since it is larger than the sum of its proper divisors (28895).

109345 is a wasteful number, since it uses less digits than its factorization.

109345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 109345 is about 330.6735550358. The cubic root of 109345 is about 47.8189067554.

It can be divided in two parts, 109 and 345, that added together give a palindrome (454).

The spelling of 109345 in words is "one hundred nine thousand, three hundred forty-five".