8014140821 has 2 divisors, whose sum is σ = 8014140822. Its totient is φ = 8014140820.

The previous prime is 8014140803. The next prime is 8014140847. The reversal of 8014140821 is 1280414108.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5911918321 + 2102222500 = 76889^2 + 45850^2 .

It is a cyclic number.

It is not a de Polignac number, because 8014140821 - 2¹⁰ = 8014139797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8014140851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4007070410 + 4007070411.

It is an arithmetic number, because the mean of its divisors is an integer number (4007070411).

Almost surely, 2^8014140821 is an apocalyptic number.

It is an amenable number.

8014140821 is a deficient number, since it is larger than the sum of its proper divisors (1).

8014140821 is an equidigital number, since it uses as much as digits as its factorization.

8014140821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 8014140821 is about 89521.7337912979. The cubic root of 8014140821 is about 2001.1777081157.

Adding to 8014140821 its reverse (1280414108), we get a palindrome (9294554929).

The spelling of 8014140821 in words is "eight billion, fourteen million, one hundred forty thousand, eight hundred twenty-one".