14666213 has 4 divisors (see below), whose sum is σ = 14942988. Its totient is φ = 14389440.

The previous prime is 14666207. The next prime is 14666237. The reversal of 14666213 is 31266641.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7059649 + 7606564 = 2657^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 14666213 - 2⁸ = 14665957 is a prime.

It is a super-2 number, since 2×14666213² = 430195607522738, which contains 22 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 (14366213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138308 + ... + 138413.

It is an arithmetic number, because the mean of its divisors is an integer number (3735747).

Almost surely, 2^14666213 is an apocalyptic number.

It is an amenable number.

14666213 is a deficient number, since it is larger than the sum of its proper divisors (276775).

14666213 is an equidigital number, since it uses as much as digits as its factorization.

14666213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276774.

The product of its digits is 5184, while the sum is 29.

The square root of 14666213 is about 3829.6492006449. The cubic root of 14666213 is about 244.7781582051.

The spelling of 14666213 in words is "fourteen million, six hundred sixty-six thousand, two hundred thirteen".