451485 has 24 divisors (see below), whose sum is σ = 798720. Its totient is φ = 235872.

The previous prime is 451481. The next prime is 451499. The reversal of 451485 is 584154.

It is not a de Polignac number, because 451485 - 2² = 451481 is a prime.

451485 is a modest number, since divided by 1485 gives 45 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3492 + ... + 3618.

It is an arithmetic number, because the mean of its divisors is an integer number (33280).

2⁴⁵¹⁴⁸⁵ is an apocalyptic number.

451485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

451485 is a deficient number, since it is larger than the sum of its proper divisors (347235).

451485 is a wasteful number, since it uses less digits than its factorization.

451485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 451485 is about 671.9263352481. The cubic root of 451485 is about 76.7151447231.

The spelling of 451485 in words is "four hundred fifty-one thousand, four hundred eighty-five".