459772009 has 2 divisors, whose sum is σ = 459772010. Its totient is φ = 459772008.

The previous prime is 459771989. The next prime is 459772057. The reversal of 459772009 is 900277954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374616025 + 85155984 = 19355^2 + 9228^2 .

It is a cyclic number.

It is not a de Polignac number, because 459772009 - 2⁹ = 459771497 is a prime.

It is a super-2 number, since 2×459772009² = 422780600519792162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (459772069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229886004 + 229886005.

It is an arithmetic number, because the mean of its divisors is an integer number (229886005).

Almost surely, 2^459772009 is an apocalyptic number.

It is an amenable number.

459772009 is a deficient number, since it is larger than the sum of its proper divisors (1).

459772009 is an equidigital number, since it uses as much as digits as its factorization.

459772009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 459772009 is about 21442.2948631904. The cubic root of 459772009 is about 771.8167082775.

It can be divided in two parts, 459 and 772009, that multiplied together give a triangular number (354352131 = T₂₆₆₂₁).

The spelling of 459772009 in words is "four hundred fifty-nine million, seven hundred seventy-two thousand, nine".