129971083 has 8 divisors (see below), whose sum is σ = 142015536. Its totient is φ = 117964800.

The previous prime is 129971071. The next prime is 129971087. The reversal of 129971083 is 380179921.

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 129971083 - 2²¹ = 127873931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129971087) 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, 2166 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (17751942).

Almost surely, 2^129971083 is an apocalyptic number.

129971083 is a deficient number, since it is larger than the sum of its proper divisors (12044453).

129971083 is a wasteful number, since it uses less digits than its factorization.

129971083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19085.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 129971083 is about 11400.4860861281. The cubic root of 129971083 is about 506.5421381882.

The spelling of 129971083 in words is "one hundred twenty-nine million, nine hundred seventy-one thousand, eighty-three".