39015 has 24 divisors (see below), whose sum is σ = 73680. Its totient is φ = 19584.

The previous prime is 38993. The next prime is 39019. The reversal of 39015 is 51093.

39015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39015 - 2¹⁰ = 37991 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2287 + ... + 2303.

It is an arithmetic number, because the mean of its divisors is an integer number (3070).

2³⁹⁰¹⁵ is an apocalyptic number.

39015 is a deficient number, since it is larger than the sum of its proper divisors (34665).

39015 is a wasteful number, since it uses less digits than its factorization.

39015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 39015 is about 197.5221506566. The cubic root of 39015 is about 33.9164615798.

Multiplying 39015 by its product of nonzero digits (135), we get a square (5267025 = 2295²).

39015 divided by its product of nonzero digits (135) gives a square (289 = 17²).

The spelling of 39015 in words is "thirty-nine thousand, fifteen".