129061679 has 2 divisors, whose sum is σ = 129061680. Its totient is φ = 129061678.

The previous prime is 129061613. The next prime is 129061703. The reversal of 129061679 is 976160921.

It is a strong prime.

It is an emirp because it is prime and its reverse (976160921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129061679 - 2¹² = 129057583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129001679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64530839 + 64530840.

It is an arithmetic number, because the mean of its divisors is an integer number (64530840).

Almost surely, 2^129061679 is an apocalyptic number.

129061679 is a deficient number, since it is larger than the sum of its proper divisors (1).

129061679 is an equidigital number, since it uses as much as digits as its factorization.

129061679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 129061679 is about 11360.5316336869. The cubic root of 129061679 is about 505.3579516232.

The spelling of 129061679 in words is "one hundred twenty-nine million, sixty-one thousand, six hundred seventy-nine".