243121244 has 12 divisors (see below), whose sum is σ = 431290944. Its totient is φ = 119895264.

The previous prime is 243121243. The next prime is 243121259. The reversal of 243121244 is 442121342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416012 + ... + 416595.

It is an arithmetic number, because the mean of its divisors is an integer number (35940912).

Almost surely, 2^243121244 is an apocalyptic number.

It is an amenable number.

243121244 is a deficient number, since it is larger than the sum of its proper divisors (188169700).

243121244 is a wasteful number, since it uses less digits than its factorization.

243121244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832684 (or 832682 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 243121244 is about 15592.3456862654. The cubic root of 243121244 is about 624.1289147140.

Adding to 243121244 its reverse (442121342), we get a palindrome (685242586).

The spelling of 243121244 in words is "two hundred forty-three million, one hundred twenty-one thousand, two hundred forty-four".