2153213 has 4 divisors (see below), whose sum is σ = 2266560. Its totient is φ = 2039868.

The previous prime is 2153209. The next prime is 2153227. The reversal of 2153213 is 3123512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2153213 - 2² = 2153209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153191 and 2153200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56645 + ... + 56682.

It is an arithmetic number, because the mean of its divisors is an integer number (566640).

2^2153213 is an apocalyptic number.

It is an amenable number.

2153213 is a deficient number, since it is larger than the sum of its proper divisors (113347).

2153213 is a wasteful number, since it uses less digits than its factorization.

2153213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113346.

The product of its digits is 180, while the sum is 17.

The square root of 2153213 is about 1467.3830447433. The cubic root of 2153213 is about 129.1305490878.

Adding to 2153213 its reverse (3123512), we get a palindrome (5276725).

Subtracting 2153213 from its reverse (3123512), we obtain a cube (970299 = 99³).

The spelling of 2153213 in words is "two million, one hundred fifty-three thousand, two hundred thirteen".