38081 has 4 divisors (see below), whose sum is σ = 38532. Its totient is φ = 37632.

The previous prime is 38069. The next prime is 38083. The reversal of 38081 is 18083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4225 + 33856 = 65^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 38081 - 2¹⁰ = 37057 is a prime.

It is a super-2 number, since 2×38081² = 2900325122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11 and base 13.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38083) 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, 56 + ... + 281.

It is an arithmetic number, because the mean of its divisors is an integer number (9633).

2³⁸⁰⁸¹ is an apocalyptic number.

38081 is the 113-rd octagonal number.

It is an amenable number.

38081 is a deficient number, since it is larger than the sum of its proper divisors (451).

38081 is a wasteful number, since it uses less digits than its factorization.

38081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450.

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

The square root of 38081 is about 195.1435369158. The cubic root of 38081 is about 33.6436248352.

The spelling of 38081 in words is "thirty-eight thousand, eighty-one".