243310045 has 16 divisors (see below), whose sum is σ = 318836160. Its totient is φ = 176774400.

The previous prime is 243310027. The next prime is 243310057. The reversal of 243310045 is 540013342.

It is not a de Polignac number, because 243310045 - 2¹⁵ = 243277277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243309998 and 243310025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80410 + ... + 83380.

It is an arithmetic number, because the mean of its divisors is an integer number (19927260).

Almost surely, 2^243310045 is an apocalyptic number.

It is an amenable number.

243310045 is a deficient number, since it is larger than the sum of its proper divisors (75526115).

243310045 is a wasteful number, since it uses less digits than its factorization.

243310045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 243310045 is about 15598.3987960303. The cubic root of 243310045 is about 624.2904331286.

Adding to 243310045 its reverse (540013342), we get a palindrome (783323387).

The spelling of 243310045 in words is "two hundred forty-three million, three hundred ten thousand, forty-five".