18513314 has 4 divisors (see below), whose sum is σ = 27769974. Its totient is φ = 9256656.

The previous prime is 18513307. The next prime is 18513329. The reversal of 18513314 is 41331581.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41331581 = 269 ⋅153649.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 7656289 = 3295^2 + 2767^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4628327 + ... + 4628330.

Almost surely, 2^18513314 is an apocalyptic number.

18513314 is a deficient number, since it is larger than the sum of its proper divisors (9256660).

18513314 is an equidigital number, since it uses as much as digits as its factorization.

18513314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256659.

The product of its digits is 1440, while the sum is 26.

The square root of 18513314 is about 4302.7100762194. The cubic root of 18513314 is about 264.5420546979.

Adding to 18513314 its reverse (41331581), we get a palindrome (59844895).

It can be divided in two parts, 185 and 13314, that multiplied together give a triangular number (2463090 = T₂₂₁₉).

The spelling of 18513314 in words is "eighteen million, five hundred thirteen thousand, three hundred fourteen".