451430423 has 2 divisors, whose sum is σ = 451430424. Its totient is φ = 451430422.

The previous prime is 451430381. The next prime is 451430431. The reversal of 451430423 is 324034154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451430423 - 2¹⁸ = 451168279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451430392 and 451430401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451430123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225715211 + 225715212.

It is an arithmetic number, because the mean of its divisors is an integer number (225715212).

Almost surely, 2^451430423 is an apocalyptic number.

451430423 is a deficient number, since it is larger than the sum of its proper divisors (1).

451430423 is an equidigital number, since it uses as much as digits as its factorization.

451430423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 451430423 is about 21246.8920786076. The cubic root of 451430423 is about 767.1205340506.

Adding to 451430423 its reverse (324034154), we get a palindrome (775464577).

The spelling of 451430423 in words is "four hundred fifty-one million, four hundred thirty thousand, four hundred twenty-three".