2144664197 has 8 divisors (see below), whose sum is σ = 2431198560. Its totient is φ = 1875495600.

The previous prime is 2144664167. The next prime is 2144664209. The reversal of 2144664197 is 7914664412.

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 2144664197 - 2¹⁸ = 2144402053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144664107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4341179 + ... + 4341672.

It is an arithmetic number, because the mean of its divisors is an integer number (303899820).

Almost surely, 2^2144664197 is an apocalyptic number.

It is an amenable number.

2144664197 is a deficient number, since it is larger than the sum of its proper divisors (286534363).

2144664197 is a wasteful number, since it uses less digits than its factorization.

2144664197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682883.

The product of its digits is 290304, while the sum is 44.

The square root of 2144664197 is about 46310.5192909775. The cubic root of 2144664197 is about 1289.5942872130.

The spelling of 2144664197 in words is "two billion, one hundred forty-four million, six hundred sixty-four thousand, one hundred ninety-seven".