459000081 has 32 divisors (see below), whose sum is σ = 740496000. Its totient is φ = 279889344.

The previous prime is 459000071. The next prime is 459000097. The reversal of 459000081 is 180000954.

It is not a de Polignac number, because 459000081 - 2¹³ = 458991889 is a prime.

It is a super-2 number, since 2×459000081² = 421362148716013122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (459000041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550 + ... + 30303.

It is an arithmetic number, because the mean of its divisors is an integer number (23140500).

Almost surely, 2^459000081 is an apocalyptic number.

It is an amenable number.

459000081 is a deficient number, since it is larger than the sum of its proper divisors (281495919).

459000081 is a wasteful number, since it uses less digits than its factorization.

459000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30910 (or 30904 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 459000081 is about 21424.2871760066. The cubic root of 459000081 is about 771.3845225730.

The spelling of 459000081 in words is "four hundred fifty-nine million, eighty-one", and thus it is an aban number.