243320126 has 16 divisors (see below), whose sum is σ = 421809120. Its totient is φ = 103107840.

The previous prime is 243320113. The next prime is 243320131. The reversal of 243320126 is 621023342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96395 + ... + 98886.

It is an arithmetic number, because the mean of its divisors is an integer number (26363070).

Almost surely, 2^243320126 is an apocalyptic number.

243320126 is a deficient number, since it is larger than the sum of its proper divisors (178488994).

243320126 is a wasteful number, since it uses less digits than its factorization.

243320126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195379.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 243320126 is about 15598.7219348253. The cubic root of 243320126 is about 624.2990550290.

Adding to 243320126 its reverse (621023342), we get a palindrome (864343468).

The spelling of 243320126 in words is "two hundred forty-three million, three hundred twenty thousand, one hundred twenty-six".