420015199 has 2 divisors, whose sum is σ = 420015200. Its totient is φ = 420015198.

The previous prime is 420015181. The next prime is 420015203. The reversal of 420015199 is 991510024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420015199 - 2²¹ = 417918047 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420015199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420015599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210007599 + 210007600.

It is an arithmetic number, because the mean of its divisors is an integer number (210007600).

Almost surely, 2^420015199 is an apocalyptic number.

420015199 is a deficient number, since it is larger than the sum of its proper divisors (1).

420015199 is an equidigital number, since it uses as much as digits as its factorization.

420015199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 420015199 is about 20494.2723461947. The cubic root of 420015199 is about 748.8962722138.

The spelling of 420015199 in words is "four hundred twenty million, fifteen thousand, one hundred ninety-nine".