129103401 has 8 divisors (see below), whose sum is σ = 196729024. Its totient is φ = 73773360.

The previous prime is 129103399. The next prime is 129103417. The reversal of 129103401 is 104301921.

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

It is not a de Polignac number, because 129103401 - 2¹ = 129103399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6147781 = 129103401 / (1 + 2 + 9 + 1 + 0 + 3 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129103421) 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, 3073870 + ... + 3073911.

It is an arithmetic number, because the mean of its divisors is an integer number (24591128).

Almost surely, 2^129103401 is an apocalyptic number.

It is an amenable number.

129103401 is a deficient number, since it is larger than the sum of its proper divisors (67625623).

129103401 is an equidigital number, since it uses as much as digits as its factorization.

129103401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6147791.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 129103401 is about 11362.3677550060. The cubic root of 129103401 is about 505.4124017461.

The spelling of 129103401 in words is "one hundred twenty-nine million, one hundred three thousand, four hundred one".