141929681 has 2 divisors, whose sum is σ = 141929682. Its totient is φ = 141929680.

The previous prime is 141929657. The next prime is 141929699. The reversal of 141929681 is 186929141.

141929681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110670400 + 31259281 = 10520^2 + 5591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141929681 is a prime.

It is a super-2 number, since 2×141929681² = 40288068697523522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (141929621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70964840 + 70964841.

It is an arithmetic number, because the mean of its divisors is an integer number (70964841).

Almost surely, 2^141929681 is an apocalyptic number.

It is an amenable number.

141929681 is a deficient number, since it is larger than the sum of its proper divisors (1).

141929681 is an equidigital number, since it uses as much as digits as its factorization.

141929681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 41.

The square root of 141929681 is about 11913.4244027484. The cubic root of 141929681 is about 521.6242126861.

The spelling of 141929681 in words is "one hundred forty-one million, nine hundred twenty-nine thousand, six hundred eighty-one".