129836103 has 12 divisors (see below), whose sum is σ = 179293608. Its totient is φ = 83571040.

The previous prime is 129836093. The next prime is 129836117. The reversal of 129836103 is 301638921.

It is not a de Polignac number, because 129836103 - 2⁴ = 129836087 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129836503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23208 + ... + 28253.

It is an arithmetic number, because the mean of its divisors is an integer number (14941134).

Almost surely, 2^129836103 is an apocalyptic number.

129836103 is a deficient number, since it is larger than the sum of its proper divisors (49457505).

129836103 is an equidigital number, since it uses as much as digits as its factorization.

129836103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51522 (or 51493 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 129836103 is about 11394.5646252939. The cubic root of 129836103 is about 506.3667229106.

It can be divided in two parts, 1298 and 36103, that added together give a triangular number (37401 = T₂₇₃).

The spelling of 129836103 in words is "one hundred twenty-nine million, eight hundred thirty-six thousand, one hundred three".