83129168 has 10 divisors (see below), whose sum is σ = 161062794. Its totient is φ = 41564576.

The previous prime is 83129159. The next prime is 83129173. The reversal of 83129168 is 86192138.

It can be written as a sum of positive squares in only one way, i.e., 67699984 + 15429184 = 8228^2 + 3928^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2597771 + ... + 2597802.

Almost surely, 2^83129168 is an apocalyptic number.

It is an amenable number.

83129168 is a deficient number, since it is larger than the sum of its proper divisors (77933626).

83129168 is a wasteful number, since it uses less digits than its factorization.

83129168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195581 (or 5195575 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 83129168 is about 9117.5198382016. The cubic root of 83129168 is about 436.4332309664.

The spelling of 83129168 in words is "eighty-three million, one hundred twenty-nine thousand, one hundred sixty-eight".