420014081 has 2 divisors, whose sum is σ = 420014082. Its totient is φ = 420014080.

The previous prime is 420014011. The next prime is 420014083. The reversal of 420014081 is 180410024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353101681 + 66912400 = 18791^2 + 8180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420014081 is a prime.

It is a super-2 number, since 2×420014081² = 352823656476549122, which contains 22 as substring.

Together with 420014083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420014083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210007040 + 210007041.

It is an arithmetic number, because the mean of its divisors is an integer number (210007041).

Almost surely, 2^420014081 is an apocalyptic number.

It is an amenable number.

420014081 is a deficient number, since it is larger than the sum of its proper divisors (1).

420014081 is an equidigital number, since it uses as much as digits as its factorization.

420014081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 420014081 is about 20494.2450702630. The cubic root of 420014081 is about 748.8956077404.

It can be divided in two parts, 4200 and 14081, that added together give a palindrome (18281).

The spelling of 420014081 in words is "four hundred twenty million, fourteen thousand, eighty-one".