102218518 has 16 divisors (see below), whose sum is σ = 170892720. Its totient is φ = 45570816.

The previous prime is 102218513. The next prime is 102218549. The reversal of 102218518 is 815812201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102218513) 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, 78471 + ... + 79762.

It is an arithmetic number, because the mean of its divisors is an integer number (10680795).

Almost surely, 2^102218518 is an apocalyptic number.

102218518 is a deficient number, since it is larger than the sum of its proper divisors (68674202).

102218518 is a wasteful number, since it uses less digits than its factorization.

102218518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158271.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 102218518 is about 10110.3174035240. The cubic root of 102218518 is about 467.5662910371.

The spelling of 102218518 in words is "one hundred two million, two hundred eighteen thousand, five hundred eighteen".