420414143 has 2 divisors, whose sum is σ = 420414144. Its totient is φ = 420414142.

The previous prime is 420414119. The next prime is 420414151. The reversal of 420414143 is 341414024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420414143 - 2¹⁴ = 420397759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420410143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210207071 + 210207072.

It is an arithmetic number, because the mean of its divisors is an integer number (210207072).

Almost surely, 2^420414143 is an apocalyptic number.

420414143 is a deficient number, since it is larger than the sum of its proper divisors (1).

420414143 is an equidigital number, since it uses as much as digits as its factorization.

420414143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 420414143 is about 20504.0030969565. The cubic root of 420414143 is about 749.1333058036.

Adding to 420414143 its reverse (341414024), we get a palindrome (761828167).

The spelling of 420414143 in words is "four hundred twenty million, four hundred fourteen thousand, one hundred forty-three".