83129189 has 8 divisors (see below), whose sum is σ = 97662432. Its totient is φ = 69758640.

The previous prime is 83129173. The next prime is 83129203. The reversal of 83129189 is 98192138.

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 83129189 - 2⁴ = 83129173 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 (83129149) 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, 290519 + ... + 290804.

It is an arithmetic number, because the mean of its divisors is an integer number (12207804).

Almost surely, 2^83129189 is an apocalyptic number.

It is an amenable number.

83129189 is a deficient number, since it is larger than the sum of its proper divisors (14533243).

83129189 is a wasteful number, since it uses less digits than its factorization.

83129189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581347.

The product of its digits is 31104, while the sum is 41.

The square root of 83129189 is about 9117.5209898305. The cubic root of 83129189 is about 436.4332677169.

The spelling of 83129189 in words is "eighty-three million, one hundred twenty-nine thousand, one hundred eighty-nine".