243248199 has 16 divisors (see below), whose sum is σ = 328403712. Its totient is φ = 160138368.

The previous prime is 243248197. The next prime is 243248231. The reversal of 243248199 is 991842342.

It is not a de Polignac number, because 243248199 - 2¹ = 243248197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243248199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243248197) 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, 135999 + ... + 137775.

It is an arithmetic number, because the mean of its divisors is an integer number (20525232).

Almost surely, 2^243248199 is an apocalyptic number.

243248199 is a deficient number, since it is larger than the sum of its proper divisors (85155513).

243248199 is a wasteful number, since it uses less digits than its factorization.

243248199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326.

The product of its digits is 124416, while the sum is 42.

The square root of 243248199 is about 15596.4162229661. The cubic root of 243248199 is about 624.2375333563.

It can be divided in two parts, 24324 and 8199, that added together give a palindrome (32523).

The spelling of 243248199 in words is "two hundred forty-three million, two hundred forty-eight thousand, one hundred ninety-nine".