452645 has 4 divisors (see below), whose sum is σ = 543180. Its totient is φ = 362112.

The previous prime is 452633. The next prime is 452671. The reversal of 452645 is 546254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546254 = 2 ⋅273127.

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 119716 = 577^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 452645 - 2⁴ = 452629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 452645.

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, 45260 + ... + 45269.

It is an arithmetic number, because the mean of its divisors is an integer number (135795).

2⁴⁵²⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

452645 is a deficient number, since it is larger than the sum of its proper divisors (90535).

452645 is an equidigital number, since it uses as much as digits as its factorization.

452645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90534.

The product of its digits is 4800, while the sum is 26.

The square root of 452645 is about 672.7889713722. The cubic root of 452645 is about 76.7807899183.

Adding to 452645 its reverse (546254), we get a palindrome (998899).

It can be divided in two parts, 45 and 2645, that multiplied together give a square (119025 = 345²).

The spelling of 452645 in words is "four hundred fifty-two thousand, six hundred forty-five".