13222454 has 12 divisors (see below), whose sum is σ = 23072004. Its totient is φ = 5666724.

The previous prime is 13222453. The next prime is 13222471. The reversal of 13222454 is 45422231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67364 + ... + 67559.

It is an arithmetic number, because the mean of its divisors is an integer number (1922667).

Almost surely, 2^13222454 is an apocalyptic number.

13222454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13222454 is a deficient number, since it is larger than the sum of its proper divisors (9849550).

13222454 is a wasteful number, since it uses less digits than its factorization.

13222454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134939 (or 134932 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 13222454 is about 3636.2692419567. The cubic root of 13222454 is about 236.4670798518.

Adding to 13222454 its reverse (45422231), we get a palindrome (58644685).

The spelling of 13222454 in words is "thirteen million, two hundred twenty-two thousand, four hundred fifty-four".