451215230 has 32 divisors (see below), whose sum is σ = 882524160. Its totient is φ = 165468960.

The previous prime is 451215229. The next prime is 451215239. The reversal of 451215230 is 32512154.

It is a junction number, because it is equal to n+sod(n) for n = 451215196 and 451215205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451215239) 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, 32414 + ... + 44193.

It is an arithmetic number, because the mean of its divisors is an integer number (27578880).

Almost surely, 2^451215230 is an apocalyptic number.

451215230 is a deficient number, since it is larger than the sum of its proper divisors (431308930).

451215230 is a wasteful number, since it uses less digits than its factorization.

451215230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76664.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 451215230 is about 21241.8273696026. The cubic root of 451215230 is about 766.9986214234.

Adding to 451215230 its reverse (32512154), we get a palindrome (483727384).

The spelling of 451215230 in words is "four hundred fifty-one million, two hundred fifteen thousand, two hundred thirty".