454509 has 12 divisors (see below), whose sum is σ = 716352. Its totient is φ = 275400.

The previous prime is 454507. The next prime is 454513. The reversal of 454509 is 905454.

It is not a de Polignac number, because 454509 - 2¹ = 454507 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2197 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (59696).

2⁴⁵⁴⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

454509 is a deficient number, since it is larger than the sum of its proper divisors (261843).

454509 is a wasteful number, since it uses less digits than its factorization.

454509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608 (or 4605 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 454509 is about 674.1728265067. The cubic root of 454509 is about 76.8860404528.

It can be divided in two parts, 45 and 4509, that added together give a palindrome (4554).

The spelling of 454509 in words is "four hundred fifty-four thousand, five hundred nine".