2223451 has 2 divisors, whose sum is σ = 2223452. Its totient is φ = 2223450.

The previous prime is 2223449. The next prime is 2223457. The reversal of 2223451 is 1543222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2223451 - 2¹ = 2223449 is a prime.

Together with 2223449, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹⁶ + 2²¹ + 3¹⁰ + 4³ + 5⁴ + 1 .

2223451 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2223457) 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 as a sum of consecutive naturals, namely, 1111725 + 1111726.

It is an arithmetic number, because the mean of its divisors is an integer number (1111726).

2^2223451 is an apocalyptic number.

2223451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223451 is an equidigital number, since it uses as much as digits as its factorization.

2223451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 19.

The square root of 2223451 is about 1491.1240726378. The cubic root of 2223451 is about 130.5196361188.

Adding to 2223451 its reverse (1543222), we get a palindrome (3766673).

The spelling of 2223451 in words is "two million, two hundred twenty-three thousand, four hundred fifty-one".