1450605209 has 2 divisors, whose sum is σ = 1450605210. Its totient is φ = 1450605208.

The previous prime is 1450605199. The next prime is 1450605229. The reversal of 1450605209 is 9025060541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985771609 + 464833600 = 31397^2 + 21560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450605209 - 2²⁸ = 1182169753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1450605229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725302604 + 725302605.

It is an arithmetic number, because the mean of its divisors is an integer number (725302605).

Almost surely, 2^1450605209 is an apocalyptic number.

It is an amenable number.

1450605209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450605209 is an equidigital number, since it uses as much as digits as its factorization.

1450605209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1450605209 is about 38086.8114837669. The cubic root of 1450605209 is about 1132.0086468247.

The spelling of 1450605209 in words is "one billion, four hundred fifty million, six hundred five thousand, two hundred nine".