2144133917 has 2 divisors, whose sum is σ = 2144133918. Its totient is φ = 2144133916.

The previous prime is 2144133913. The next prime is 2144133923. The reversal of 2144133917 is 7193314412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731475321 + 412658596 = 41611^2 + 20314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144133917 - 2² = 2144133913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144133913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072066958 + 1072066959.

It is an arithmetic number, because the mean of its divisors is an integer number (1072066959).

Almost surely, 2^2144133917 is an apocalyptic number.

It is an amenable number.

2144133917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144133917 is an equidigital number, since it uses as much as digits as its factorization.

2144133917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 2144133917 is about 46304.7936719299. The cubic root of 2144133917 is about 1289.4879920288.

The spelling of 2144133917 in words is "two billion, one hundred forty-four million, one hundred thirty-three thousand, nine hundred seventeen".