14782213 has 4 divisors (see below), whose sum is σ = 14790348. Its totient is φ = 14774080.

The previous prime is 14782211. The next prime is 14782241. The reversal of 14782213 is 31228741.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9972964 + 4809249 = 3158^2 + 2193^2 .

It is a cyclic number.

It is not a de Polignac number, because 14782213 - 2¹ = 14782211 is a prime.

It is a super-3 number, since 3×14782213³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14782211) 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 in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (3697587).

Almost surely, 2^14782213 is an apocalyptic number.

It is an amenable number.

14782213 is a deficient number, since it is larger than the sum of its proper divisors (8135).

14782213 is an equidigital number, since it uses as much as digits as its factorization.

14782213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134.

The product of its digits is 2688, while the sum is 28.

The square root of 14782213 is about 3844.7643620903. The cubic root of 14782213 is about 245.4218084244.

The spelling of 14782213 in words is "fourteen million, seven hundred eighty-two thousand, two hundred thirteen".