451212 has 24 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 142416.

The previous prime is 451207. The next prime is 451249. The reversal of 451212 is 212154.

It is a junction number, because it is equal to n+sod(n) for n = 451191 and 451200.

It is an unprimeable number.

451212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762 + ... + 1217.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2⁴⁵¹²¹² is an apocalyptic number.

It is an amenable number.

451212 is an abundant number, since it is smaller than the sum of its proper divisors (657588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451212 is a wasteful number, since it uses less digits than its factorization.

451212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005 (or 2003 counting only the distinct ones).

The product of its digits is 80, while the sum is 15.

The square root of 451212 is about 671.7231572605. The cubic root of 451212 is about 76.6996791246.

Adding to 451212 its reverse (212154), we get a palindrome (663366).

The spelling of 451212 in words is "four hundred fifty-one thousand, two hundred twelve".