420100459 has 2 divisors, whose sum is σ = 420100460. Its totient is φ = 420100458.

The previous prime is 420100453. The next prime is 420100487. The reversal of 420100459 is 954001024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420100459 - 2⁵ = 420100427 is a prime.

It is not a weakly prime, because it can be changed into another prime (420100453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210050229 + 210050230.

It is an arithmetic number, because the mean of its divisors is an integer number (210050230).

Almost surely, 2^420100459 is an apocalyptic number.

420100459 is a deficient number, since it is larger than the sum of its proper divisors (1).

420100459 is an equidigital number, since it uses as much as digits as its factorization.

420100459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 420100459 is about 20496.3523340130. The cubic root of 420100459 is about 748.9469422660.

The spelling of 420100459 in words is "four hundred twenty million, one hundred thousand, four hundred fifty-nine".