129003901 has 8 divisors (see below), whose sum is σ = 146239520. Its totient is φ = 112812912.

The previous prime is 129003869. The next prime is 129003911. The reversal of 129003901 is 109300921.

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 129003901 - 2⁵ = 129003869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129003911) 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, 260895 + ... + 261388.

It is an arithmetic number, because the mean of its divisors is an integer number (18279940).

Almost surely, 2^129003901 is an apocalyptic number.

It is an amenable number.

129003901 is a deficient number, since it is larger than the sum of its proper divisors (17235619).

129003901 is a wasteful number, since it uses less digits than its factorization.

129003901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522315.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 129003901 is about 11357.9884222515. The cubic root of 129003901 is about 505.2825279183.

The spelling of 129003901 in words is "one hundred twenty-nine million, three thousand, nine hundred one".