243252041 has 16 divisors (see below), whose sum is σ = 261777600. Its totient is φ = 225358848.

The previous prime is 243252017. The next prime is 243252043. The reversal of 243252041 is 140252342.

It is a happy number.

It is not a de Polignac number, because 243252041 - 2²² = 239057737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243251998 and 243252016.

It is not an unprimeable number, because it can be changed into a prime (243252043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163286 + ... + 164768.

It is an arithmetic number, because the mean of its divisors is an integer number (16361100).

Almost surely, 2^243252041 is an apocalyptic number.

It is an amenable number.

243252041 is a deficient number, since it is larger than the sum of its proper divisors (18525559).

243252041 is a wasteful number, since it uses less digits than its factorization.

243252041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 243252041 is about 15596.5393918010. The cubic root of 243252041 is about 624.2408198595.

The spelling of 243252041 in words is "two hundred forty-three million, two hundred fifty-two thousand, forty-one".