108509259 has 4 divisors (see below), whose sum is σ = 144679016. Its totient is φ = 72339504.

The previous prime is 108509257. The next prime is 108509281. The reversal of 108509259 is 952905801.

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

It is not a de Polignac number, because 108509259 - 2¹ = 108509257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108509251) 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, 18084874 + ... + 18084879.

It is an arithmetic number, because the mean of its divisors is an integer number (36169754).

Almost surely, 2^108509259 is an apocalyptic number.

108509259 is a deficient number, since it is larger than the sum of its proper divisors (36169757).

108509259 is an equidigital number, since it uses as much as digits as its factorization.

108509259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36169756.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 108509259 is about 10416.7777647409. Note that the first 4 decimals coincide. The cubic root of 108509259 is about 476.9676590725.

The spelling of 108509259 in words is "one hundred eight million, five hundred nine thousand, two hundred fifty-nine".