108242109 has 8 divisors (see below), whose sum is σ = 160358720. Its totient is φ = 72161388.

The previous prime is 108242039. The next prime is 108242119. The reversal of 108242109 is 901242801.

It is not a de Polignac number, because 108242109 - 2⁸ = 108241853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4008967 = 108242109 / (1 + 0 + 8 + 2 + 4 + 2 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108242119) 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, 2004457 + ... + 2004510.

It is an arithmetic number, because the mean of its divisors is an integer number (20044840).

Almost surely, 2^108242109 is an apocalyptic number.

It is an amenable number.

108242109 is a deficient number, since it is larger than the sum of its proper divisors (52116611).

108242109 is an equidigital number, since it uses as much as digits as its factorization.

108242109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008976 (or 4008970 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 108242109 is about 10403.9467991719. The cubic root of 108242109 is about 476.5759056388.

The spelling of 108242109 in words is "one hundred eight million, two hundred forty-two thousand, one hundred nine".