19494503141 has 2 divisors, whose sum is σ = 19494503142. Its totient is φ = 19494503140.

The previous prime is 19494503071. The next prime is 19494503179. The reversal of 19494503141 is 14130549491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18042131041 + 1452372100 = 134321^2 + 38110^2 .

It is a cyclic number.

It is not a de Polignac number, because 19494503141 - 2¹⁴ = 19494486757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19494503191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9747251570 + 9747251571.

It is an arithmetic number, because the mean of its divisors is an integer number (9747251571).

Almost surely, 2^19494503141 is an apocalyptic number.

It is an amenable number.

19494503141 is a deficient number, since it is larger than the sum of its proper divisors (1).

19494503141 is an equidigital number, since it uses as much as digits as its factorization.

19494503141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

It can be divided in two parts, 1949450 and 3141, that added together give a palindrome (1952591).

The spelling of 19494503141 in words is "nineteen billion, four hundred ninety-four million, five hundred three thousand, one hundred forty-one".