451328243 has 2 divisors, whose sum is σ = 451328244. Its totient is φ = 451328242.

The previous prime is 451328221. The next prime is 451328249. The reversal of 451328243 is 342823154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451328243 - 2¹⁴ = 451311859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (451328249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225664121 + 225664122.

It is an arithmetic number, because the mean of its divisors is an integer number (225664122).

Almost surely, 2^451328243 is an apocalyptic number.

451328243 is a deficient number, since it is larger than the sum of its proper divisors (1).

451328243 is an equidigital number, since it uses as much as digits as its factorization.

451328243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 451328243 is about 21244.4873555471. The cubic root of 451328243 is about 767.0626511618.

The spelling of 451328243 in words is "four hundred fifty-one million, three hundred twenty-eight thousand, two hundred forty-three".