243453663 has 12 divisors (see below), whose sum is σ = 352956448. Its totient is φ = 161701920.

The previous prime is 243453653. The next prime is 243453667. The reversal of 243453663 is 366354342.

It is not a de Polignac number, because 243453663 - 2¹⁰ = 243452639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243453667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47470 + ... + 52347.

Almost surely, 2^243453663 is an apocalyptic number.

243453663 is a deficient number, since it is larger than the sum of its proper divisors (109502785).

243453663 is a wasteful number, since it uses less digits than its factorization.

243453663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100094 (or 100091 counting only the distinct ones).

The product of its digits is 155520, while the sum is 36.

The square root of 243453663 is about 15603.0017304364. The cubic root of 243453663 is about 624.4132417426.

The spelling of 243453663 in words is "two hundred forty-three million, four hundred fifty-three thousand, six hundred sixty-three".