2144247652 has 12 divisors (see below), whose sum is σ = 3752763196. Its totient is φ = 1072029600.

The previous prime is 2144247629. The next prime is 2144247653. The reversal of 2144247652 is 2567424412.

It can be written as a sum of positive squares in 2 ways, for example, as 2012778496 + 131469156 = 44864^2 + 11466^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2144247653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62902 + ... + 90802.

Almost surely, 2^2144247652 is an apocalyptic number.

It is an amenable number.

2144247652 is a deficient number, since it is larger than the sum of its proper divisors (1608515544).

2144247652 is a wasteful number, since it uses less digits than its factorization.

2144247652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47118 (or 47116 counting only the distinct ones).

The product of its digits is 107520, while the sum is 37.

The square root of 2144247652 is about 46306.0217682323. The cubic root of 2144247652 is about 1289.5107918055.

The spelling of 2144247652 in words is "two billion, one hundred forty-four million, two hundred forty-seven thousand, six hundred fifty-two".