243141213 has 8 divisors (see below), whose sum is σ = 370500928. Its totient is φ = 138937824.

The previous prime is 243141187. The next prime is 243141229. The reversal of 243141213 is 312141342.

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

It is not a de Polignac number, because 243141213 - 2⁸ = 243140957 is a prime.

It is a super-2 number, since 2×243141213² = 118235298918222738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 11578153 = 243141213 / (2 + 4 + 3 + 1 + 4 + 1 + 2 + 1 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 243141213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243141253) 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, 5789056 + ... + 5789097.

It is an arithmetic number, because the mean of its divisors is an integer number (46312616).

Almost surely, 2^243141213 is an apocalyptic number.

It is an amenable number.

243141213 is a deficient number, since it is larger than the sum of its proper divisors (127359715).

243141213 is a wasteful number, since it uses less digits than its factorization.

243141213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578163.

The product of its digits is 576, while the sum is 21.

The square root of 243141213 is about 15592.9860193614. The cubic root of 243141213 is about 624.1460020582.

Adding to 243141213 its reverse (312141342), we get a palindrome (555282555).

The spelling of 243141213 in words is "two hundred forty-three million, one hundred forty-one thousand, two hundred thirteen".