12451242 has 32 divisors (see below), whose sum is σ = 26827200. Its totient is φ = 3838208.

The previous prime is 12451223. The next prime is 12451253. The reversal of 12451242 is 24215421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4984 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (838350).

Almost surely, 2^12451242 is an apocalyptic number.

12451242 is an abundant number, since it is smaller than the sum of its proper divisors (14375958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12451242 is a wasteful number, since it uses less digits than its factorization.

12451242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150.

The product of its digits is 640, while the sum is 21.

The square root of 12451242 is about 3528.6317461588. The cubic root of 12451242 is about 231.7772957007. Note that the first 3 decimals are identical.

Adding to 12451242 its reverse (24215421), we get a palindrome (36666663).

The spelling of 12451242 in words is "twelve million, four hundred fifty-one thousand, two hundred forty-two".