2144465893 has 2 divisors, whose sum is σ = 2144465894. Its totient is φ = 2144465892.

The previous prime is 2144465879. The next prime is 2144465923. The reversal of 2144465893 is 3985644412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1510332769 + 634133124 = 38863^2 + 25182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144465893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144465093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072232946 + 1072232947.

It is an arithmetic number, because the mean of its divisors is an integer number (1072232947).

Almost surely, 2^2144465893 is an apocalyptic number.

It is an amenable number.

2144465893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144465893 is an equidigital number, since it uses as much as digits as its factorization.

2144465893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 46.

The square root of 2144465893 is about 46308.3782160421. The cubic root of 2144465893 is about 1289.5545390187.

The spelling of 2144465893 in words is "two billion, one hundred forty-four million, four hundred sixty-five thousand, eight hundred ninety-three".