2144797801 has 2 divisors, whose sum is σ = 2144797802. Its totient is φ = 2144797800.

The previous prime is 2144797789. The next prime is 2144797807. The reversal of 2144797801 is 1087974412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367224576 + 777573225 = 36976^2 + 27885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144797801 - 2¹³ = 2144789609 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144797807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072398900 + 1072398901.

It is an arithmetic number, because the mean of its divisors is an integer number (1072398901).

Almost surely, 2^2144797801 is an apocalyptic number.

It is an amenable number.

2144797801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144797801 is an equidigital number, since it uses as much as digits as its factorization.

2144797801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 2144797801 is about 46311.9617485591. The cubic root of 2144797801 is about 1289.6210655121.

The spelling of 2144797801 in words is "two billion, one hundred forty-four million, seven hundred ninety-seven thousand, eight hundred one".