129941767 has 2 divisors, whose sum is σ = 129941768. Its totient is φ = 129941766.

The previous prime is 129941737. The next prime is 129941783. The reversal of 129941767 is 767149921.

It is a strong prime.

It is an emirp because it is prime and its reverse (767149921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129941767 is a prime.

It is a super-2 number, since 2×129941767² = 33769725622164578, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129941737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64970883 + 64970884.

It is an arithmetic number, because the mean of its divisors is an integer number (64970884).

Almost surely, 2^129941767 is an apocalyptic number.

129941767 is a deficient number, since it is larger than the sum of its proper divisors (1).

129941767 is an equidigital number, since it uses as much as digits as its factorization.

129941767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 129941767 is about 11399.2002789669. The cubic root of 129941767 is about 506.5040504700.

The spelling of 129941767 in words is "one hundred twenty-nine million, nine hundred forty-one thousand, seven hundred sixty-seven".