243002541 has 16 divisors (see below), whose sum is σ = 329453568. Its totient is φ = 159289200.

The previous prime is 243002537. The next prime is 243002561. The reversal of 243002541 is 145200342.

It is not a de Polignac number, because 243002541 - 2² = 243002537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243002561) 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, 90480 + ... + 93126.

It is an arithmetic number, because the mean of its divisors is an integer number (20590848).

Almost surely, 2^243002541 is an apocalyptic number.

It is an amenable number.

243002541 is a deficient number, since it is larger than the sum of its proper divisors (86451027).

243002541 is a wasteful number, since it uses less digits than its factorization.

243002541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 243002541 is about 15588.5387705198. The cubic root of 243002541 is about 624.0273220080.

Adding to 243002541 its reverse (145200342), we get a palindrome (388202883).

The spelling of 243002541 in words is "two hundred forty-three million, two thousand, five hundred forty-one".