2105213 has 16 divisors (see below), whose sum is σ = 2457216. Its totient is φ = 1784640.

The previous prime is 2105209. The next prime is 2105231. The reversal of 2105213 is 3125012.

It is a happy number.

It is not a de Polignac number, because 2105213 - 2² = 2105209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105203) 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, 13331 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (153576).

2^2105213 is an apocalyptic number.

2105213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2105213 is a deficient number, since it is larger than the sum of its proper divisors (352003).

2105213 is a wasteful number, since it uses less digits than its factorization.

2105213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2105213 is about 1450.9352156454. The cubic root of 2105213 is about 128.1637917837.

The spelling of 2105213 in words is "two million, one hundred five thousand, two hundred thirteen".