243541101 has 16 divisors (see below), whose sum is σ = 339393600. Its totient is φ = 155140608.

The previous prime is 243541087. The next prime is 243541127. The reversal of 243541101 is 101145342.

It is not a de Polignac number, because 243541101 - 2¹¹ = 243539053 is a prime.

It is a super-3 number, since 3×243541101³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243541171) 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, 5991 + ... + 22868.

It is an arithmetic number, because the mean of its divisors is an integer number (21212100).

Almost surely, 2^243541101 is an apocalyptic number.

It is an amenable number.

243541101 is a deficient number, since it is larger than the sum of its proper divisors (95852499).

243541101 is a wasteful number, since it uses less digits than its factorization.

243541101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28988.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 243541101 is about 15605.8034397464. The cubic root of 243541101 is about 624.4879868493.

Adding to 243541101 its reverse (101145342), we get a palindrome (344686443).

The spelling of 243541101 in words is "two hundred forty-three million, five hundred forty-one thousand, one hundred one".