451234513 has 2 divisors, whose sum is σ = 451234514. Its totient is φ = 451234512.

The previous prime is 451234409. The next prime is 451234523. The reversal of 451234513 is 315432154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301612689 + 149621824 = 17367^2 + 12232^2 .

It is a cyclic number.

It is not a de Polignac number, because 451234513 - 2⁹ = 451234001 is a prime.

It is a super-2 number, since 2×451234513² = 407225171444694338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451234523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225617256 + 225617257.

It is an arithmetic number, because the mean of its divisors is an integer number (225617257).

Almost surely, 2^451234513 is an apocalyptic number.

It is an amenable number.

451234513 is a deficient number, since it is larger than the sum of its proper divisors (1).

451234513 is an equidigital number, since it uses as much as digits as its factorization.

451234513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 451234513 is about 21242.2812569648. The cubic root of 451234513 is about 767.0095473428.

Adding to 451234513 its reverse (315432154), we get a palindrome (766666667).

The spelling of 451234513 in words is "four hundred fifty-one million, two hundred thirty-four thousand, five hundred thirteen".