2118253 has 4 divisors (see below), whose sum is σ = 2229760. Its totient is φ = 2006748.

The previous prime is 2118239. The next prime is 2118269. The reversal of 2118253 is 3528112.

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 2118253 - 2²¹ = 21101 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 (2118283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55725 + ... + 55762.

It is an arithmetic number, because the mean of its divisors is an integer number (557440).

2^2118253 is an apocalyptic number.

It is an amenable number.

2118253 is a deficient number, since it is larger than the sum of its proper divisors (111507).

2118253 is a wasteful number, since it uses less digits than its factorization.

2118253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111506.

The product of its digits is 480, while the sum is 22.

The square root of 2118253 is about 1455.4219319496. The cubic root of 2118253 is about 128.4278691006.

It can be divided in two parts, 211 and 8253, that added together give a square (8464 = 92²).

The spelling of 2118253 in words is "two million, one hundred eighteen thousand, two hundred fifty-three".