38109 has 4 divisors (see below), whose sum is σ = 50816. Its totient is φ = 25404.

The previous prime is 38083. The next prime is 38113. The reversal of 38109 is 90183.

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.

It is not a de Polignac number, because 38109 - 2⁸ = 37853 is a prime.

It is an Ulam number.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 8 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 (38119) 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, 6349 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (12704).

2³⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

38109 is a deficient number, since it is larger than the sum of its proper divisors (12707).

38109 is a wasteful number, since it uses less digits than its factorization.

38109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12706.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 38109 is about 195.2152657965. The cubic root of 38109 is about 33.6518685850.

The spelling of 38109 in words is "thirty-eight thousand, one hundred nine".