12245542 has 8 divisors (see below), whose sum is σ = 19448856. Its totient is φ = 5762592.

The previous prime is 12245539. The next prime is 12245549. The reversal of 12245542 is 24554221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245549) 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 in 3 ways as a sum of consecutive naturals, for example, 180048 + ... + 180115.

It is an arithmetic number, because the mean of its divisors is an integer number (2431107).

Almost surely, 2^12245542 is an apocalyptic number.

12245542 is a deficient number, since it is larger than the sum of its proper divisors (7203314).

12245542 is a wasteful number, since it uses less digits than its factorization.

12245542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360182.

The product of its digits is 3200, while the sum is 25.

The square root of 12245542 is about 3499.3630849056. The cubic root of 12245542 is about 230.4938475026.

Adding to 12245542 its reverse (24554221), we get a palindrome (36799763).

The spelling of 12245542 in words is "twelve million, two hundred forty-five thousand, five hundred forty-two".