1420412209 has 2 divisors, whose sum is σ = 1420412210. Its totient is φ = 1420412208.

The previous prime is 1420412167. The next prime is 1420412221. The reversal of 1420412209 is 9022140241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337511184 + 82901025 = 36572^2 + 9105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420412209 - 2⁹ = 1420411697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420412269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710206104 + 710206105.

It is an arithmetic number, because the mean of its divisors is an integer number (710206105).

Almost surely, 2^1420412209 is an apocalyptic number.

It is an amenable number.

1420412209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420412209 is an equidigital number, since it uses as much as digits as its factorization.

1420412209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1420412209 is about 37688.3564114966. The cubic root of 1420412209 is about 1124.0996144559.

The spelling of 1420412209 in words is "one billion, four hundred twenty million, four hundred twelve thousand, two hundred nine".