243013235 has 8 divisors (see below), whose sum is σ = 293474256. Its totient is φ = 193171680.

The previous prime is 243013231. The next prime is 243013259. The reversal of 243013235 is 532310342.

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

It is not a de Polignac number, because 243013235 - 2² = 243013231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243013235.

It is not an unprimeable number, because it can be changed into a prime (243013231) 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, 154001 + ... + 155570.

It is an arithmetic number, because the mean of its divisors is an integer number (36684282).

Almost surely, 2^243013235 is an apocalyptic number.

243013235 is a deficient number, since it is larger than the sum of its proper divisors (50461021).

243013235 is a wasteful number, since it uses less digits than its factorization.

243013235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309733.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 243013235 is about 15588.8817751627. The cubic root of 243013235 is about 624.0364758907.

Adding to 243013235 its reverse (532310342), we get a palindrome (775323577).

The spelling of 243013235 in words is "two hundred forty-three million, thirteen thousand, two hundred thirty-five".