451715923 has 4 divisors (see below), whose sum is σ = 451771888. Its totient is φ = 451659960.

The previous prime is 451715909. The next prime is 451715933. The reversal of 451715923 is 329517154.

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

It is a cyclic number.

It is not a de Polignac number, because 451715923 - 2¹⁷ = 451584851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451715933) 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, 13311 + ... + 32872.

It is an arithmetic number, because the mean of its divisors is an integer number (112942972).

Almost surely, 2^451715923 is an apocalyptic number.

451715923 is a deficient number, since it is larger than the sum of its proper divisors (55965).

451715923 is an equidigital number, since it uses as much as digits as its factorization.

451715923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55964.

The product of its digits is 37800, while the sum is 37.

The square root of 451715923 is about 21253.6096463636. The cubic root of 451715923 is about 767.2822177026.

The spelling of 451715923 in words is "four hundred fifty-one million, seven hundred fifteen thousand, nine hundred twenty-three".