2135205 has 24 divisors (see below), whose sum is σ = 3863808. Its totient is φ = 1088736.

The previous prime is 2135197. The next prime is 2135207. The reversal of 2135205 is 5025312.

It is a happy number.

It is not a de Polignac number, because 2135205 - 2³ = 2135197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135207) 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, 4 + ... + 2066.

It is an arithmetic number, because the mean of its divisors is an integer number (160992).

2^2135205 is an apocalyptic number.

It is an amenable number.

2135205 is a deficient number, since it is larger than the sum of its proper divisors (1728603).

2135205 is a wasteful number, since it uses less digits than its factorization.

2135205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2135205 is about 1461.2340674923. The cubic root of 2135205 is about 128.7695543241.

The spelling of 2135205 in words is "two million, one hundred thirty-five thousand, two hundred five".