108539709 has 8 divisors (see below), whose sum is σ = 144898752. Its totient is φ = 72270240.

The previous prime is 108539689. The next prime is 108539729. The reversal of 108539709 is 907935801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (108539689) and next prime (108539729).

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

It is not a de Polignac number, because 108539709 - 2¹¹ = 108537661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108539729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19512 + ... + 24449.

It is an arithmetic number, because the mean of its divisors is an integer number (18112344).

Almost surely, 2^108539709 is an apocalyptic number.

It is an amenable number.

108539709 is a deficient number, since it is larger than the sum of its proper divisors (36359043).

108539709 is an equidigital number, since it uses as much as digits as its factorization.

108539709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44787.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 108539709 is about 10418.2392466290. The cubic root of 108539709 is about 477.0122706476.

The spelling of 108539709 in words is "one hundred eight million, five hundred thirty-nine thousand, seven hundred nine".