141981784897 has 2 divisors, whose sum is σ = 141981784898. Its totient is φ = 141981784896.

The previous prime is 141981784837. The next prime is 141981784939. The reversal of 141981784897 is 798487189141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130805912241 + 11175872656 = 361671^2 + 105716^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141981784897 is a prime.

It is not a weakly prime, because it can be changed into another prime (141981784837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70990892448 + 70990892449.

It is an arithmetic number, because the mean of its divisors is an integer number (70990892449).

Almost surely, 2^141981784897 is an apocalyptic number.

It is an amenable number.

141981784897 is a deficient number, since it is larger than the sum of its proper divisors (1).

141981784897 is an equidigital number, since it uses as much as digits as its factorization.

141981784897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32514048, while the sum is 67.

The spelling of 141981784897 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-four thousand, eight hundred ninety-seven".