5451223 has 4 divisors (see below), whose sum is σ = 5462208. Its totient is φ = 5440240.

The previous prime is 5451151. The next prime is 5451241. The reversal of 5451223 is 3221545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5451223 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

5451223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5451194 and 5451203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451263) 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, 4711 + ... + 5752.

It is an arithmetic number, because the mean of its divisors is an integer number (1365552).

Almost surely, 2^5451223 is an apocalyptic number.

5451223 is a deficient number, since it is larger than the sum of its proper divisors (10985).

5451223 is a wasteful number, since it uses less digits than its factorization.

5451223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10984.

The product of its digits is 1200, while the sum is 22.

The square root of 5451223 is about 2334.7854291133. The cubic root of 5451223 is about 175.9940489551.

Adding to 5451223 its reverse (3221545), we get a palindrome (8672768).

The spelling of 5451223 in words is "five million, four hundred fifty-one thousand, two hundred twenty-three".