2143165352 has 16 divisors (see below), whose sum is σ = 4028462100. Its totient is φ = 1068908800.

The previous prime is 2143165313. The next prime is 2143165379. The reversal of 2143165352 is 2535613412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1338535396 + 804629956 = 36586^2 + 28366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330827 + ... + 337242.

Almost surely, 2^2143165352 is an apocalyptic number.

It is an amenable number.

2143165352 is a deficient number, since it is larger than the sum of its proper divisors (1885296748).

2143165352 is a wasteful number, since it uses less digits than its factorization.

2143165352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668476 (or 668472 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 2143165352 is about 46294.3339081577. Note that the first 3 decimals coincide. The cubic root of 2143165352 is about 1289.2937969062.

Adding to 2143165352 its reverse (2535613412), we get a palindrome (4678778764).

The spelling of 2143165352 in words is "two billion, one hundred forty-three million, one hundred sixty-five thousand, three hundred fifty-two".