2218453 has 4 divisors (see below), whose sum is σ = 2290048. Its totient is φ = 2146860.

The previous prime is 2218451. The next prime is 2218519. The reversal of 2218453 is 3548122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3548122 = 2 ⋅1774061.

It is a cyclic number.

It is not a de Polignac number, because 2218453 - 2¹ = 2218451 is a prime.

It is a Duffinian number.

2218453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218451) 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, 35751 + ... + 35812.

It is an arithmetic number, because the mean of its divisors is an integer number (572512).

2^2218453 is an apocalyptic number.

It is an amenable number.

2218453 is a deficient number, since it is larger than the sum of its proper divisors (71595).

2218453 is an equidigital number, since it uses as much as digits as its factorization.

2218453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71594.

The product of its digits is 1920, while the sum is 25.

The square root of 2218453 is about 1489.4472128948. The cubic root of 2218453 is about 130.4217662551.

The spelling of 2218453 in words is "two million, two hundred eighteen thousand, four hundred fifty-three".