14711821 has 2 divisors, whose sum is σ = 14711822. Its totient is φ = 14711820.

The previous prime is 14711803. The next prime is 14711843. The reversal of 14711821 is 12811741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 6702921 = 2830^2 + 2589^2 .

It is an emirp because it is prime and its reverse (12811741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14711821 - 2¹³ = 14703629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14511821) 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 as a sum of consecutive naturals, namely, 7355910 + 7355911.

It is an arithmetic number, because the mean of its divisors is an integer number (7355911).

Almost surely, 2^14711821 is an apocalyptic number.

It is an amenable number.

14711821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14711821 is an equidigital number, since it uses as much as digits as its factorization.

14711821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 25.

The square root of 14711821 is about 3835.5991709249. The cubic root of 14711821 is about 245.0316271818.

The spelling of 14711821 in words is "fourteen million, seven hundred eleven thousand, eight hundred twenty-one".