451845473 has 4 divisors (see below), whose sum is σ = 451910340. Its totient is φ = 451780608.

The previous prime is 451845437. The next prime is 451845523. The reversal of 451845473 is 374548154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228402769 + 223442704 = 15113^2 + 14948^2 .

It is a cyclic number.

It is not a de Polignac number, because 451845473 - 2⁶ = 451845409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451845473.

It is not an unprimeable number, because it can be changed into a prime (451845413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20528 + ... + 36401.

It is an arithmetic number, because the mean of its divisors is an integer number (112977585).

Almost surely, 2^451845473 is an apocalyptic number.

It is an amenable number.

451845473 is a deficient number, since it is larger than the sum of its proper divisors (64867).

451845473 is an equidigital number, since it uses as much as digits as its factorization.

451845473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64866.

The product of its digits is 268800, while the sum is 41.

The square root of 451845473 is about 21256.6571454686. The cubic root of 451845473 is about 767.3555616674.

The spelling of 451845473 in words is "four hundred fifty-one million, eight hundred forty-five thousand, four hundred seventy-three".