2194803539 has 2 divisors, whose sum is σ = 2194803540. Its totient is φ = 2194803538.

The previous prime is 2194803529. The next prime is 2194803613. The reversal of 2194803539 is 9353084912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2194803539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2194803539.

It is not a weakly prime, because it can be changed into another prime (2194803529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097401769 + 1097401770.

It is an arithmetic number, because the mean of its divisors is an integer number (1097401770).

Almost surely, 2^2194803539 is an apocalyptic number.

2194803539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194803539 is an equidigital number, since it uses as much as digits as its factorization.

2194803539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2194803539 is about 46848.7303883467. The cubic root of 2194803539 is about 1299.5666285245.

The spelling of 2194803539 in words is "two billion, one hundred ninety-four million, eight hundred three thousand, five hundred thirty-nine".