18613214 has 4 divisors (see below), whose sum is σ = 27919824. Its totient is φ = 9306606.

The previous prime is 18613213. The next prime is 18613223. The reversal of 18613214 is 41231681.

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 (18613211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4653302 + ... + 4653305.

It is an arithmetic number, because the mean of its divisors is an integer number (6979956).

Almost surely, 2^18613214 is an apocalyptic number.

18613214 is a deficient number, since it is larger than the sum of its proper divisors (9306610).

18613214 is an equidigital number, since it uses as much as digits as its factorization.

18613214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306609.

The product of its digits is 1152, while the sum is 26.

The square root of 18613214 is about 4314.3034200204. The cubic root of 18613214 is about 265.0170346235.

Adding to 18613214 its reverse (41231681), we get a palindrome (59844895).

The spelling of 18613214 in words is "eighteen million, six hundred thirteen thousand, two hundred fourteen".