451320193 has 4 divisors (see below), whose sum is σ = 452915248. Its totient is φ = 449725140.

The previous prime is 451320161. The next prime is 451320197. The reversal of 451320193 is 391023154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 451320193 - 2⁵ = 451320161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451320197) 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, 797103 + ... + 797668.

It is an arithmetic number, because the mean of its divisors is an integer number (113228812).

Almost surely, 2^451320193 is an apocalyptic number.

It is an amenable number.

451320193 is a deficient number, since it is larger than the sum of its proper divisors (1595055).

451320193 is a wasteful number, since it uses less digits than its factorization.

451320193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595054.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 451320193 is about 21244.2978937879. The cubic root of 451320193 is about 767.0580906295.

The spelling of 451320193 in words is "four hundred fifty-one million, three hundred twenty thousand, one hundred ninety-three".