108018613 has 4 divisors (see below), whose sum is σ = 108490540. Its totient is φ = 107546688.

The previous prime is 108018587. The next prime is 108018653. The reversal of 108018613 is 316810801.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69105969 + 38912644 = 8313^2 + 6238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108018613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108018653) 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, 235620 + ... + 236077.

It is an arithmetic number, because the mean of its divisors is an integer number (27122635).

Almost surely, 2^108018613 is an apocalyptic number.

It is an amenable number.

108018613 is a deficient number, since it is larger than the sum of its proper divisors (471927).

108018613 is an equidigital number, since it uses as much as digits as its factorization.

108018613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471926.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 108018613 is about 10393.2003252126. The cubic root of 108018613 is about 476.2476717003.

The spelling of 108018613 in words is "one hundred eight million, eighteen thousand, six hundred thirteen".