243113453 has 16 divisors (see below), whose sum is σ = 273784320. Its totient is φ = 213985200.

The previous prime is 243113441. The next prime is 243113461. The reversal of 243113453 is 354311342.

It is not a de Polignac number, because 243113453 - 2⁶ = 243113389 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 (243113483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40688 + ... + 46278.

It is an arithmetic number, because the mean of its divisors is an integer number (17111520).

Almost surely, 2^243113453 is an apocalyptic number.

It is an amenable number.

243113453 is a deficient number, since it is larger than the sum of its proper divisors (30670867).

243113453 is a wasteful number, since it uses less digits than its factorization.

243113453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728.

The product of its digits is 4320, while the sum is 26.

The square root of 243113453 is about 15592.0958501415. The cubic root of 243113453 is about 624.1222477520.

Adding to 243113453 its reverse (354311342), we get a palindrome (597424795).

The spelling of 243113453 in words is "two hundred forty-three million, one hundred thirteen thousand, four hundred fifty-three".