83081 has 4 divisors (see below), whose sum is σ = 83664. Its totient is φ = 82500.

The previous prime is 83077. The next prime is 83089. The reversal of 83081 is 18038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 83081 - 2² = 83077 is a prime.

It is a super-2 number, since 2×83081² = 13804905122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (83089) 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, 86 + ... + 416.

It is an arithmetic number, because the mean of its divisors is an integer number (20916).

2⁸³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

83081 is a deficient number, since it is larger than the sum of its proper divisors (583).

83081 is a wasteful number, since it uses less digits than its factorization.

83081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 83081 is about 288.2377490892. The cubic root of 83081 is about 43.6348919695.

The spelling of 83081 in words is "eighty-three thousand, eighty-one".