39121 has 8 divisors (see below), whose sum is σ = 43200. Its totient is φ = 35280.

The previous prime is 39119. The next prime is 39133. The reversal of 39121 is 12193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39121 - 2¹ = 39119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39095 and 39104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516 + ... + 586.

It is an arithmetic number, because the mean of its divisors is an integer number (5400).

2³⁹¹²¹ is an apocalyptic number.

It is an amenable number.

39121 is a deficient number, since it is larger than the sum of its proper divisors (4079).

39121 is a wasteful number, since it uses less digits than its factorization.

39121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119.

The product of its digits is 54, while the sum is 16.

The square root of 39121 is about 197.7902929873. The cubic root of 39121 is about 33.9471497250.

The spelling of 39121 in words is "thirty-nine thousand, one hundred twenty-one".