2015205 has 16 divisors (see below), whose sum is σ = 3312384. Its totient is φ = 1045440.

The previous prime is 2015203. The next prime is 2015213. The reversal of 2015205 is 5025102.

It is not a de Polignac number, because 2015205 - 2¹ = 2015203 is a prime.

It is a super-2 number, since 2×2015205² = 8122102384050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 2370.

It is an arithmetic number, because the mean of its divisors is an integer number (207024).

2^2015205 is an apocalyptic number.

It is an amenable number.

2015205 is a deficient number, since it is larger than the sum of its proper divisors (1297179).

2015205 is a wasteful number, since it uses less digits than its factorization.

2015205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2015205 is about 1419.5791629916. The cubic root of 2015205 is about 126.3105842610.

It can be divided in two parts, 20 and 15205, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 2015205 in words is "two million, fifteen thousand, two hundred five".