3145223243 has 16 divisors (see below), whose sum is σ = 3218849280. Its totient is φ = 3072696000.

The previous prime is 3145223209. The next prime is 3145223267. The reversal of 3145223243 is 3423225413.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3145223243 - 2⁸ = 3145222987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145228243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3050138 + ... + 3051168.

It is an arithmetic number, because the mean of its divisors is an integer number (201178080).

Almost surely, 2^3145223243 is an apocalyptic number.

3145223243 is a deficient number, since it is larger than the sum of its proper divisors (73626037).

3145223243 is a wasteful number, since it uses less digits than its factorization.

3145223243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its digits is 17280, while the sum is 29.

The square root of 3145223243 is about 56082.2899229338. The cubic root of 3145223243 is about 1465.1558567929.

Adding to 3145223243 its reverse (3423225413), we get a palindrome (6568448656).

The spelling of 3145223243 in words is "three billion, one hundred forty-five million, two hundred twenty-three thousand, two hundred forty-three".