452540281 has 2 divisors, whose sum is σ = 452540282. Its totient is φ = 452540280.

The previous prime is 452540237. The next prime is 452540287. The reversal of 452540281 is 182045254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444366400 + 8173881 = 21080^2 + 2859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452540281 is a prime.

It is a super-2 number, since 2×452540281² = 409585411855117922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (452540287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226270140 + 226270141.

It is an arithmetic number, because the mean of its divisors is an integer number (226270141).

Almost surely, 2^452540281 is an apocalyptic number.

It is an amenable number.

452540281 is a deficient number, since it is larger than the sum of its proper divisors (1).

452540281 is an equidigital number, since it uses as much as digits as its factorization.

452540281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 452540281 is about 21272.9941710141. The cubic root of 452540281 is about 767.7486840684.

The spelling of 452540281 in words is "four hundred fifty-two million, five hundred forty thousand, two hundred eighty-one".