83120199 has 4 divisors (see below), whose sum is σ = 110826936. Its totient is φ = 55413464.

The previous prime is 83120189. The next prime is 83120237. The reversal of 83120199 is 99102138.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83120199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83120129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13853364 + ... + 13853369.

It is an arithmetic number, because the mean of its divisors is an integer number (27706734).

Almost surely, 2^83120199 is an apocalyptic number.

83120199 is a deficient number, since it is larger than the sum of its proper divisors (27706737).

83120199 is a wasteful number, since it uses less digits than its factorization.

83120199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27706736.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 83120199 is about 9117.0279696840. The cubic root of 83120199 is about 436.4175344685.

The spelling of 83120199 in words is "eighty-three million, one hundred twenty thousand, one hundred ninety-nine".