14213021 has 2 divisors, whose sum is σ = 14213022. Its totient is φ = 14213020.

The previous prime is 14213009. The next prime is 14213039. The reversal of 14213021 is 12031241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14212900 + 121 = 3770^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 14213021 - 2¹⁰ = 14211997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14212987 and 14213005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14213081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7106510 + 7106511.

It is an arithmetic number, because the mean of its divisors is an integer number (7106511).

Almost surely, 2^14213021 is an apocalyptic number.

It is an amenable number.

14213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213021 is an equidigital number, since it uses as much as digits as its factorization.

14213021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 14213021 is about 3770.0160477112. The cubic root of 14213021 is about 242.2304852817.

Adding to 14213021 its reverse (12031241), we get a palindrome (26244262).

The spelling of 14213021 in words is "fourteen million, two hundred thirteen thousand, twenty-one".