129615103 has 2 divisors, whose sum is σ = 129615104. Its totient is φ = 129615102.

The previous prime is 129615071. The next prime is 129615113. The reversal of 129615103 is 301516921.

It is a strong prime.

It is an emirp because it is prime and its reverse (301516921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129615103 - 2⁵ = 129615071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129615113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64807551 + 64807552.

It is an arithmetic number, because the mean of its divisors is an integer number (64807552).

Almost surely, 2^129615103 is an apocalyptic number.

129615103 is a deficient number, since it is larger than the sum of its proper divisors (1).

129615103 is an equidigital number, since it uses as much as digits as its factorization.

129615103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 129615103 is about 11384.8628889416. The cubic root of 129615103 is about 506.0792563859.

The spelling of 129615103 in words is "one hundred twenty-nine million, six hundred fifteen thousand, one hundred three".