13218283 has 8 divisors (see below), whose sum is σ = 14436576. Its totient is φ = 12028800.

The previous prime is 13218269. The next prime is 13218311. The reversal of 13218283 is 38281231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13218283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13218263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6238 + ... + 8083.

It is an arithmetic number, because the mean of its divisors is an integer number (1804572).

Almost surely, 2^13218283 is an apocalyptic number.

13218283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13218283 is a deficient number, since it is larger than the sum of its proper divisors (1218293).

13218283 is a wasteful number, since it uses less digits than its factorization.

13218283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405.

The product of its digits is 2304, while the sum is 28.

The square root of 13218283 is about 3635.6956693321. The cubic root of 13218283 is about 236.4422128612.

It can be divided in two parts, 1321 and 8283, that added together give a square (9604 = 98²).

The spelling of 13218283 in words is "thirteen million, two hundred eighteen thousand, two hundred eighty-three".