4221453 has 4 divisors (see below), whose sum is σ = 5628608. Its totient is φ = 2814300.

The previous prime is 4221449. The next prime is 4221467. The reversal of 4221453 is 3541224.

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 not a de Polignac number, because 4221453 - 2² = 4221449 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221433) 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, 703573 + ... + 703578.

It is an arithmetic number, because the mean of its divisors is an integer number (1407152).

Almost surely, 2^4221453 is an apocalyptic number.

It is an amenable number.

4221453 is a deficient number, since it is larger than the sum of its proper divisors (1407155).

4221453 is a wasteful number, since it uses less digits than its factorization.

4221453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407154.

The product of its digits is 960, while the sum is 21.

The square root of 4221453 is about 2054.6174826473. The cubic root of 4221453 is about 161.6171036410.

Adding to 4221453 its reverse (3541224), we get a palindrome (7762677).

The spelling of 4221453 in words is "four million, two hundred twenty-one thousand, four hundred fifty-three".