453721361 has 2 divisors, whose sum is σ = 453721362. Its totient is φ = 453721360.

The previous prime is 453721351. The next prime is 453721379. The reversal of 453721361 is 163127354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310464400 + 143256961 = 17620^2 + 11969^2 .

It is a cyclic number.

It is not a de Polignac number, because 453721361 - 2⁶ = 453721297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (453721351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226860680 + 226860681.

It is an arithmetic number, because the mean of its divisors is an integer number (226860681).

Almost surely, 2^453721361 is an apocalyptic number.

It is an amenable number.

453721361 is a deficient number, since it is larger than the sum of its proper divisors (1).

453721361 is an equidigital number, since it uses as much as digits as its factorization.

453721361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 453721361 is about 21300.7361609875. The cubic root of 453721361 is about 768.4160168540.

The spelling of 453721361 in words is "four hundred fifty-three million, seven hundred twenty-one thousand, three hundred sixty-one".