452537381 has 2 divisors, whose sum is σ = 452537382. Its totient is φ = 452537380.

The previous prime is 452537369. The next prime is 452537387. The reversal of 452537381 is 183735254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294808900 + 157728481 = 17170^2 + 12559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452537381 is a prime.

It is a super-2 number, since 2×452537381² = 409580162404678322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452537387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226268690 + 226268691.

It is an arithmetic number, because the mean of its divisors is an integer number (226268691).

Almost surely, 2^452537381 is an apocalyptic number.

It is an amenable number.

452537381 is a deficient number, since it is larger than the sum of its proper divisors (1).

452537381 is an equidigital number, since it uses as much as digits as its factorization.

452537381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 452537381 is about 21272.9260093669. The cubic root of 452537381 is about 767.7470440848.

The spelling of 452537381 in words is "four hundred fifty-two million, five hundred thirty-seven thousand, three hundred eighty-one".