1224542 has 8 divisors (see below), whose sum is σ = 2003832. Its totient is φ = 556600.

The previous prime is 1224533. The next prime is 1224577. The reversal of 1224542 is 2454221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 27809 + ... + 27852.

It is an arithmetic number, because the mean of its divisors is an integer number (250479).

2^1224542 is an apocalyptic number.

1224542 is a deficient number, since it is larger than the sum of its proper divisors (779290).

1224542 is a wasteful number, since it uses less digits than its factorization.

1224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55674.

The product of its digits is 640, while the sum is 20.

The square root of 1224542 is about 1106.5902584064. The cubic root of 1224542 is about 106.9854115843.

Adding to 1224542 its reverse (2454221), we get a palindrome (3678763).

It can be divided in two parts, 122 and 4542, that added together give a palindrome (4664).

The spelling of 1224542 in words is "one million, two hundred twenty-four thousand, five hundred forty-two".