451047813 has 16 divisors (see below), whose sum is σ = 609638400. Its totient is φ = 296590064.

The previous prime is 451047763. The next prime is 451047823. The reversal of 451047813 is 318740154.

It is a cyclic number.

It is not a de Polignac number, because 451047813 - 2⁸ = 451047557 is a prime.

It is a super-2 number, since 2×451047813² = 406888259224165938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451047823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213838 + ... + 215936.

It is an arithmetic number, because the mean of its divisors is an integer number (38102400).

Almost surely, 2^451047813 is an apocalyptic number.

It is an amenable number.

451047813 is a deficient number, since it is larger than the sum of its proper divisors (158590587).

451047813 is a wasteful number, since it uses less digits than its factorization.

451047813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 451047813 is about 21237.8862648805. The cubic root of 451047813 is about 766.9037483751.

Adding to 451047813 its reverse (318740154), we get a palindrome (769787967).

The spelling of 451047813 in words is "four hundred fifty-one million, forty-seven thousand, eight hundred thirteen".