129802001 has 8 divisors (see below), whose sum is σ = 149514240. Its totient is φ = 110382048.

The previous prime is 129801989. The next prime is 129802003. The reversal of 129802001 is 100208921.

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

It is not a de Polignac number, because 129802001 - 2¹⁰ = 129800977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129802003) 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, 72116 + ... + 73893.

It is an arithmetic number, because the mean of its divisors is an integer number (18689280).

Almost surely, 2^129802001 is an apocalyptic number.

It is an amenable number.

129802001 is a deficient number, since it is larger than the sum of its proper divisors (19712239).

129802001 is a wasteful number, since it uses less digits than its factorization.

129802001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146143.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 129802001 is about 11393.0681117950. The cubic root of 129802001 is about 506.3223859102.

The spelling of 129802001 in words is "one hundred twenty-nine million, eight hundred two thousand, one".