141969542381 has 2 divisors, whose sum is σ = 141969542382. Its totient is φ = 141969542380.

The previous prime is 141969542353. The next prime is 141969542411. The reversal of 141969542381 is 183245969141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71147026756 + 70822515625 = 266734^2 + 266125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141969542381 is a prime.

It is a super-2 number, since 2×141969542381² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141969542581) 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, 70984771190 + 70984771191.

It is an arithmetic number, because the mean of its divisors is an integer number (70984771191).

Almost surely, 2^141969542381 is an apocalyptic number.

It is an amenable number.

141969542381 is a deficient number, since it is larger than the sum of its proper divisors (1).

141969542381 is an equidigital number, since it uses as much as digits as its factorization.

141969542381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The spelling of 141969542381 in words is "one hundred forty-one billion, nine hundred sixty-nine million, five hundred forty-two thousand, three hundred eighty-one".