129888103 has 2 divisors, whose sum is σ = 129888104. Its totient is φ = 129888102.

The previous prime is 129888089. The next prime is 129888127. The reversal of 129888103 is 301888921.

It is a weak prime.

It is an emirp because it is prime and its reverse (301888921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129888103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129868103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64944051 + 64944052.

It is an arithmetic number, because the mean of its divisors is an integer number (64944052).

Almost surely, 2^129888103 is an apocalyptic number.

129888103 is a deficient number, since it is larger than the sum of its proper divisors (1).

129888103 is an equidigital number, since it uses as much as digits as its factorization.

129888103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 129888103 is about 11396.8461865553. The cubic root of 129888103 is about 506.4343146783.

It can be divided in two parts, 1298 and 88103, that added together give a square (89401 = 299²).

The spelling of 129888103 in words is "one hundred twenty-nine million, eight hundred eighty-eight thousand, one hundred three".