451247912 has 16 divisors (see below), whose sum is σ = 847122900. Its totient is φ = 225348480.

The previous prime is 451247911. The next prime is 451247957. The reversal of 451247912 is 219742154.

It can be written as a sum of positive squares in 2 ways, for example, as 398162116 + 53085796 = 19954^2 + 7286^2 .

It is not an unprimeable number, because it can be changed into a prime (451247911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27389 + ... + 40652.

Almost surely, 2^451247912 is an apocalyptic number.

It is an amenable number.

451247912 is a deficient number, since it is larger than the sum of its proper divisors (395874988).

451247912 is a wasteful number, since it uses less digits than its factorization.

451247912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68876 (or 68872 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 451247912 is about 21242.5966397708. The cubic root of 451247912 is about 767.0171391522.

The spelling of 451247912 in words is "four hundred fifty-one million, two hundred forty-seven thousand, nine hundred twelve".