452009 has 2 divisors, whose sum is σ = 452010. Its totient is φ = 452008.

The previous prime is 451987. The next prime is 452017. The reversal of 452009 is 900254.

452009 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 25600 = 653^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 452009 - 2⁸ = 451753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 452009.

It is not a weakly prime, because it can be changed into another prime (454009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226004 + 226005.

It is an arithmetic number, because the mean of its divisors is an integer number (226005).

2⁴⁵²⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

452009 is a deficient number, since it is larger than the sum of its proper divisors (1).

452009 is an equidigital number, since it uses as much as digits as its factorization.

452009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 452009 is about 672.3161458719. The cubic root of 452009 is about 76.7448121496.

The spelling of 452009 in words is "four hundred fifty-two thousand, nine".