451021012 has 24 divisors (see below), whose sum is σ = 894740000. Its totient is φ = 197207136.

The previous prime is 451021003. The next prime is 451021037. The reversal of 451021012 is 210120154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227262 + ... + 229237.

Almost surely, 2^451021012 is an apocalyptic number.

It is an amenable number.

451021012 is a deficient number, since it is larger than the sum of its proper divisors (443718988).

451021012 is a wasteful number, since it uses less digits than its factorization.

451021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456535 (or 456533 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 451021012 is about 21237.2552840521. The cubic root of 451021012 is about 766.8885584153. Note that the first 3 decimals are identical.

Adding to 451021012 its reverse (210120154), we get a palindrome (661141166).

The spelling of 451021012 in words is "four hundred fifty-one million, twenty-one thousand, twelve".