243322145 has 8 divisors (see below), whose sum is σ = 318530880. Its totient is φ = 176961520.

The previous prime is 243322103. The next prime is 243322147. The reversal of 243322145 is 541223342.

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

It is not a de Polignac number, because 243322145 - 2⁶ = 243322081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243322147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211965 + ... + 2212074.

It is an arithmetic number, because the mean of its divisors is an integer number (39816360).

Almost surely, 2^243322145 is an apocalyptic number.

It is an amenable number.

243322145 is a deficient number, since it is larger than the sum of its proper divisors (75208735).

243322145 is a wasteful number, since it uses less digits than its factorization.

243322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424055.

The product of its digits is 5760, while the sum is 26.

The square root of 243322145 is about 15598.7866515316. The cubic root of 243322145 is about 624.3007817752.

Adding to 243322145 its reverse (541223342), we get a palindrome (784545487).

The spelling of 243322145 in words is "two hundred forty-three million, three hundred twenty-two thousand, one hundred forty-five".