451211045 has 32 divisors (see below), whose sum is σ = 575410176. Its totient is φ = 339148800.

The previous prime is 451211039. The next prime is 451211113. The reversal of 451211045 is 540112154.

It is not a de Polignac number, because 451211045 - 2⁸ = 451210789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 451211045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1755557 + ... + 1755813.

It is an arithmetic number, because the mean of its divisors is an integer number (17981568).

Almost surely, 2^451211045 is an apocalyptic number.

It is an amenable number.

451211045 is a deficient number, since it is larger than the sum of its proper divisors (124199131).

451211045 is a wasteful number, since it uses less digits than its factorization.

451211045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 451211045 is about 21241.7288609002. The cubic root of 451211045 is about 766.9962501240.

Adding to 451211045 its reverse (540112154), we get a palindrome (991323199).

The spelling of 451211045 in words is "four hundred fifty-one million, two hundred eleven thousand, forty-five".