108188819 has 2 divisors, whose sum is σ = 108188820. Its totient is φ = 108188818.

The previous prime is 108188813. The next prime is 108188827. The reversal of 108188819 is 918881801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108188819 - 2¹² = 108184723 is a prime.

It is a super-2 number, since 2×108188819² = 23409641113229522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 108188819.

It is not a weakly prime, because it can be changed into another prime (108188813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54094409 + 54094410.

It is an arithmetic number, because the mean of its divisors is an integer number (54094410).

Almost surely, 2^108188819 is an apocalyptic number.

108188819 is a deficient number, since it is larger than the sum of its proper divisors (1).

108188819 is an equidigital number, since it uses as much as digits as its factorization.

108188819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 44.

The square root of 108188819 is about 10401.3854365657. The cubic root of 108188819 is about 476.4976831578.

The spelling of 108188819 in words is "one hundred eight million, one hundred eighty-eight thousand, eight hundred nineteen".