129276103 has 8 divisors (see below), whose sum is σ = 144308736. Its totient is φ = 114790200.

The previous prime is 129276101. The next prime is 129276137. The reversal of 129276103 is 301672921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129276103 - 2¹ = 129276101 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 (129276101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136183 + ... + 137128.

It is an arithmetic number, because the mean of its divisors is an integer number (18038592).

Almost surely, 2^129276103 is an apocalyptic number.

129276103 is a deficient number, since it is larger than the sum of its proper divisors (15032633).

129276103 is a wasteful number, since it uses less digits than its factorization.

129276103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273365.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 129276103 is about 11369.9649515731. The cubic root of 129276103 is about 505.6376652172.

The spelling of 129276103 in words is "one hundred twenty-nine million, two hundred seventy-six thousand, one hundred three".