18102814 has 4 divisors (see below), whose sum is σ = 27154224. Its totient is φ = 9051406.

The previous prime is 18102811. The next prime is 18102827. The reversal of 18102814 is 41820181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41820181 = 13 ⋅3216937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18102811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4525702 + ... + 4525705.

It is an arithmetic number, because the mean of its divisors is an integer number (6788556).

Almost surely, 2^18102814 is an apocalyptic number.

18102814 is a deficient number, since it is larger than the sum of its proper divisors (9051410).

18102814 is an equidigital number, since it uses as much as digits as its factorization.

18102814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051409.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18102814 is about 4254.7401800815. The cubic root of 18102814 is about 262.5721718408.

Adding to 18102814 its reverse (41820181), we get a palindrome (59922995).

It can be divided in two parts, 1810 and 2814, that added together give a square (4624 = 68²).

The spelling of 18102814 in words is "eighteen million, one hundred two thousand, eight hundred fourteen".