129805703 has 2 divisors, whose sum is σ = 129805704. Its totient is φ = 129805702.

The previous prime is 129805661. The next prime is 129805729. The reversal of 129805703 is 307508921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129805703 - 2⁸ = 129805447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129805903) 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, 64902851 + 64902852.

It is an arithmetic number, because the mean of its divisors is an integer number (64902852).

Almost surely, 2^129805703 is an apocalyptic number.

129805703 is a deficient number, since it is larger than the sum of its proper divisors (1).

129805703 is an equidigital number, since it uses as much as digits as its factorization.

129805703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 129805703 is about 11393.2305778475. The cubic root of 129805703 is about 506.3271993636.

The spelling of 129805703 in words is "one hundred twenty-nine million, eight hundred five thousand, seven hundred three".