2172144297 has 8 divisors (see below), whose sum is σ = 2900223360. Its totient is φ = 1446080720.

The previous prime is 2172144287. The next prime is 2172144313. The reversal of 2172144297 is 7924412712.

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

It is a cyclic number.

It is not a de Polignac number, because 2172144297 - 2⁸ = 2172144041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2172144287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501354 + ... + 505667.

It is an arithmetic number, because the mean of its divisors is an integer number (362527920).

Almost surely, 2^2172144297 is an apocalyptic number.

It is an amenable number.

2172144297 is a deficient number, since it is larger than the sum of its proper divisors (728079063).

2172144297 is a wasteful number, since it uses less digits than its factorization.

2172144297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007743.

The product of its digits is 56448, while the sum is 39.

The square root of 2172144297 is about 46606.2688594571. The cubic root of 2172144297 is about 1295.0788892674.

The spelling of 2172144297 in words is "two billion, one hundred seventy-two million, one hundred forty-four thousand, two hundred ninety-seven".