21014713 has 2 divisors, whose sum is σ = 21014714. Its totient is φ = 21014712.

The previous prime is 21014701. The next prime is 21014743. The reversal of 21014713 is 31741012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12766329 + 8248384 = 3573^2 + 2872^2 .

It is a cyclic number.

It is not a de Polignac number, because 21014713 - 2⁵ = 21014681 is a prime.

It is not a weakly prime, because it can be changed into another prime (21014743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507356 + 10507357.

It is an arithmetic number, because the mean of its divisors is an integer number (10507357).

Almost surely, 2^21014713 is an apocalyptic number.

It is an amenable number.

21014713 is a deficient number, since it is larger than the sum of its proper divisors (1).

21014713 is an equidigital number, since it uses as much as digits as its factorization.

21014713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 21014713 is about 4584.1807337844. The cubic root of 21014713 is about 275.9568344242.

Adding to 21014713 its reverse (31741012), we get a palindrome (52755725).

The spelling of 21014713 in words is "twenty-one million, fourteen thousand, seven hundred thirteen".