451530413 has 2 divisors, whose sum is σ = 451530414. Its totient is φ = 451530412.

The previous prime is 451530397. The next prime is 451530427. The reversal of 451530413 is 314035154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234763684 + 216766729 = 15322^2 + 14723^2 .

It is a cyclic number.

It is not a de Polignac number, because 451530413 - 2⁴ = 451530397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451530613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225765206 + 225765207.

It is an arithmetic number, because the mean of its divisors is an integer number (225765207).

Almost surely, 2^451530413 is an apocalyptic number.

It is an amenable number.

451530413 is a deficient number, since it is larger than the sum of its proper divisors (1).

451530413 is an equidigital number, since it uses as much as digits as its factorization.

451530413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 451530413 is about 21249.2449983523. The cubic root of 451530413 is about 767.1771678940.

Adding to 451530413 its reverse (314035154), we get a palindrome (765565567).

The spelling of 451530413 in words is "four hundred fifty-one million, five hundred thirty thousand, four hundred thirteen".