2051205 has 32 divisors (see below), whose sum is σ = 3609984. Its totient is φ = 988416.

The previous prime is 2051191. The next prime is 2051219. The reversal of 2051205 is 5021502.

It is an interprime number because it is at equal distance from previous prime (2051191) and next prime (2051219).

It is not a de Polignac number, because 2051205 - 2⁵ = 2051173 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12987 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (112812).

2^2051205 is an apocalyptic number.

It is an amenable number.

2051205 is a deficient number, since it is larger than the sum of its proper divisors (1558779).

2051205 is a wasteful number, since it uses less digits than its factorization.

2051205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

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

The square root of 2051205 is about 1432.2028487613. The cubic root of 2051205 is about 127.0582946878.

Adding to 2051205 its reverse (5021502), we get a palindrome (7072707).

The spelling of 2051205 in words is "two million, fifty-one thousand, two hundred five".