451530463 has 4 divisors (see below), whose sum is σ = 451583568. Its totient is φ = 451477360.

The previous prime is 451530451. The next prime is 451530517. The reversal of 451530463 is 364035154.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 451530463 - 2¹⁷ = 451399391 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451530413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10606 + ... + 31867.

It is an arithmetic number, because the mean of its divisors is an integer number (112895892).

Almost surely, 2^451530463 is an apocalyptic number.

451530463 is a deficient number, since it is larger than the sum of its proper divisors (53105).

451530463 is a wasteful number, since it uses less digits than its factorization.

451530463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53104.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 451530463 is about 21249.2461748647. The cubic root of 451530463 is about 767.1771962117.

The spelling of 451530463 in words is "four hundred fifty-one million, five hundred thirty thousand, four hundred sixty-three".