243187241 has 8 divisors (see below), whose sum is σ = 266644224. Its totient is φ = 219955120.

The previous prime is 243187207. The next prime is 243187247. The reversal of 243187241 is 142781342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243187241 - 2⁶ = 243187177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243187198 and 243187207.

It is not an unprimeable number, because it can be changed into a prime (243187247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53945 + ... + 58278.

It is an arithmetic number, because the mean of its divisors is an integer number (33330528).

Almost surely, 2^243187241 is an apocalyptic number.

It is an amenable number.

243187241 is a deficient number, since it is larger than the sum of its proper divisors (23456983).

243187241 is a wasteful number, since it uses less digits than its factorization.

243187241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112431.

The product of its digits is 10752, while the sum is 32.

The square root of 243187241 is about 15594.4618695228. The cubic root of 243187241 is about 624.1853843568.

The spelling of 243187241 in words is "two hundred forty-three million, one hundred eighty-seven thousand, two hundred forty-one".