451420323 has 4 divisors (see below), whose sum is σ = 601893768. Its totient is φ = 300946880.

The previous prime is 451420273. The next prime is 451420337. The reversal of 451420323 is 323024154.

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 451420323 - 2⁹ = 451419811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451420293 and 451420302.

It is not an unprimeable number, because it can be changed into a prime (451420223) 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, 75236718 + ... + 75236723.

It is an arithmetic number, because the mean of its divisors is an integer number (150473442).

Almost surely, 2^451420323 is an apocalyptic number.

451420323 is a deficient number, since it is larger than the sum of its proper divisors (150473445).

451420323 is a wasteful number, since it uses less digits than its factorization.

451420323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150473444.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 451420323 is about 21246.6543954572. The cubic root of 451420323 is about 767.1148129953.

Adding to 451420323 its reverse (323024154), we get a palindrome (774444477).

The spelling of 451420323 in words is "four hundred fifty-one million, four hundred twenty thousand, three hundred twenty-three".