129883801 has 4 divisors (see below), whose sum is σ = 133394212. Its totient is φ = 126373392.

The previous prime is 129883799. The next prime is 129883811. The reversal of 129883801 is 108388921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106069401 + 23814400 = 10299^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 129883801 - 2¹ = 129883799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129883811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755150 + ... + 1755223.

It is an arithmetic number, because the mean of its divisors is an integer number (33348553).

Almost surely, 2^129883801 is an apocalyptic number.

It is an amenable number.

129883801 is a deficient number, since it is larger than the sum of its proper divisors (3510411).

129883801 is an equidigital number, since it uses as much as digits as its factorization.

129883801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510410.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 129883801 is about 11396.6574485680. The cubic root of 129883801 is about 506.4287234439.

The spelling of 129883801 in words is "one hundred twenty-nine million, eight hundred eighty-three thousand, eight hundred one".