12018814 has 4 divisors (see below), whose sum is σ = 18028224. Its totient is φ = 6009406.

The previous prime is 12018749. The next prime is 12018817. The reversal of 12018814 is 41881021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3004702 + ... + 3004705.

It is an arithmetic number, because the mean of its divisors is an integer number (4507056).

Almost surely, 2^12018814 is an apocalyptic number.

12018814 is a deficient number, since it is larger than the sum of its proper divisors (6009410).

12018814 is an equidigital number, since it uses as much as digits as its factorization.

12018814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009409.

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

The square root of 12018814 is about 3466.8161185734. The cubic root of 12018814 is about 229.0624341121.

Adding to 12018814 its reverse (41881021), we get a palindrome (53899835).

The spelling of 12018814 in words is "twelve million, eighteen thousand, eight hundred fourteen".