451143232 has 14 divisors (see below), whose sum is σ = 895237478. Its totient is φ = 225571584.

The previous prime is 451143113. The next prime is 451143241. The reversal of 451143232 is 232341154.

It can be written as a sum of positive squares in only one way, i.e., 431642176 + 19501056 = 20776^2 + 4416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 451143197 and 451143206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524493 + ... + 3524620.

Almost surely, 2^451143232 is an apocalyptic number.

It is an amenable number.

451143232 is a deficient number, since it is larger than the sum of its proper divisors (444094246).

451143232 is an equidigital number, since it uses as much as digits as its factorization.

451143232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049125 (or 7049115 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 451143232 is about 21240.1325796239. The cubic root of 451143232 is about 766.9578239646.

Adding to 451143232 its reverse (232341154), we get a palindrome (683484386).

The spelling of 451143232 in words is "four hundred fifty-one million, one hundred forty-three thousand, two hundred thirty-two".