103819818 has 16 divisors (see below), whose sum is σ = 207754560. Its totient is φ = 34587456.

The previous prime is 103819811. The next prime is 103819823. The reversal of 103819818 is 818918301.

It is not an unprimeable number, because it can be changed into a prime (103819811) 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, 10923 + ... + 18081.

It is an arithmetic number, because the mean of its divisors is an integer number (12984660).

Almost surely, 2^103819818 is an apocalyptic number.

103819818 is an abundant number, since it is smaller than the sum of its proper divisors (103934742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103819818 is a wasteful number, since it uses less digits than its factorization.

103819818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581.

The product of its (nonzero) digits is 13824, while the sum is 39.

The square root of 103819818 is about 10189.2010481686. The cubic root of 103819818 is about 469.9951983816.

The spelling of 103819818 in words is "one hundred three million, eight hundred nineteen thousand, eight hundred eighteen".