2144511797 has 2 divisors, whose sum is σ = 2144511798. Its totient is φ = 2144511796.

The previous prime is 2144511757. The next prime is 2144511907. The reversal of 2144511797 is 7971154412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1483713361 + 660798436 = 38519^2 + 25706^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144511797 - 2⁸ = 2144511541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144511737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072255898 + 1072255899.

It is an arithmetic number, because the mean of its divisors is an integer number (1072255899).

Almost surely, 2^2144511797 is an apocalyptic number.

It is an amenable number.

2144511797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144511797 is an equidigital number, since it uses as much as digits as its factorization.

2144511797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 2144511797 is about 46308.8738472444. The cubic root of 2144511797 is about 1289.5637402670.

The spelling of 2144511797 in words is "two billion, one hundred forty-four million, five hundred eleven thousand, seven hundred ninety-seven".