453243649 has 2 divisors, whose sum is σ = 453243650. Its totient is φ = 453243648.

The previous prime is 453243629. The next prime is 453243667. The reversal of 453243649 is 946342354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446561424 + 6682225 = 21132^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 453243649 - 2¹³ = 453235457 is a prime.

It is not a weakly prime, because it can be changed into another prime (453243629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226621824 + 226621825.

It is an arithmetic number, because the mean of its divisors is an integer number (226621825).

Almost surely, 2^453243649 is an apocalyptic number.

It is an amenable number.

453243649 is a deficient number, since it is larger than the sum of its proper divisors (1).

453243649 is an equidigital number, since it uses as much as digits as its factorization.

453243649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 40.

The square root of 453243649 is about 21289.5196986686. The cubic root of 453243649 is about 768.1462400779.

The spelling of 453243649 in words is "four hundred fifty-three million, two hundred forty-three thousand, six hundred forty-nine".