450745 has 4 divisors (see below), whose sum is σ = 540900. Its totient is φ = 360592.

The previous prime is 450727. The next prime is 450761. The reversal of 450745 is 547054.

450745 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547054 = 2 ⋅273527.

It can be written as a sum of positive squares in 2 ways, for example, as 71289 + 379456 = 267^2 + 616^2 .

It is a cyclic number.

It is not a de Polignac number, because 450745 - 2⁷ = 450617 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45070 + ... + 45079.

It is an arithmetic number, because the mean of its divisors is an integer number (135225).

2⁴⁵⁰⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

450745 is a deficient number, since it is larger than the sum of its proper divisors (90155).

450745 is an equidigital number, since it uses as much as digits as its factorization.

450745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90154.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 450745 is about 671.3754538259. The cubic root of 450745 is about 76.6732088515.

Adding to 450745 its reverse (547054), we get a palindrome (997799).

The spelling of 450745 in words is "four hundred fifty thousand, seven hundred forty-five".