18810102 has 8 divisors (see below), whose sum is σ = 37620216. Its totient is φ = 6270032.

The previous prime is 18810091. The next prime is 18810107. The reversal of 18810102 is 20101881.

It is a sphenic number, since it is the product of 3 distinct primes.

18810102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18810107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567503 + ... + 1567514.

It is an arithmetic number, because the mean of its divisors is an integer number (4702527).

Almost surely, 2^18810102 is an apocalyptic number.

18810102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18810102 is a wasteful number, since it uses less digits than its factorization.

18810102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135022.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 18810102 is about 4337.0614475702. The cubic root of 18810102 is about 265.9481968957.

Adding to 18810102 its reverse (20101881), we get a palindrome (38911983).

The spelling of 18810102 in words is "eighteen million, eight hundred ten thousand, one hundred two".