453663949 has 2 divisors, whose sum is σ = 453663950. Its totient is φ = 453663948.

The previous prime is 453663929. The next prime is 453663953. The reversal of 453663949 is 949366354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404733924 + 48930025 = 20118^2 + 6995^2 .

It is a cyclic number.

It is not a de Polignac number, because 453663949 - 2¹⁵ = 453631181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453663929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226831974 + 226831975.

It is an arithmetic number, because the mean of its divisors is an integer number (226831975).

Almost surely, 2^453663949 is an apocalyptic number.

It is an amenable number.

453663949 is a deficient number, since it is larger than the sum of its proper divisors (1).

453663949 is an equidigital number, since it uses as much as digits as its factorization.

453663949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 49.

The square root of 453663949 is about 21299.3884653997. The cubic root of 453663949 is about 768.3836047724.

The spelling of 453663949 in words is "four hundred fifty-three million, six hundred sixty-three thousand, nine hundred forty-nine".