141216481781 has 2 divisors, whose sum is σ = 141216481782. Its totient is φ = 141216481780.

The previous prime is 141216481729. The next prime is 141216481789. The reversal of 141216481781 is 187184612141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140374611556 + 841870225 = 374666^2 + 29015^2 .

It is an emirp because it is prime and its reverse (187184612141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141216481781 - 2¹⁸ = 141216219637 is a prime.

It is a super-2 number, since 2×141216481781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141216481789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70608240890 + 70608240891.

It is an arithmetic number, because the mean of its divisors is an integer number (70608240891).

Almost surely, 2^141216481781 is an apocalyptic number.

It is an amenable number.

141216481781 is a deficient number, since it is larger than the sum of its proper divisors (1).

141216481781 is an equidigital number, since it uses as much as digits as its factorization.

141216481781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 44.

The spelling of 141216481781 in words is "one hundred forty-one billion, two hundred sixteen million, four hundred eighty-one thousand, seven hundred eighty-one".