12517142 has 16 divisors (see below), whose sum is σ = 20637072. Its totient is φ = 5646720.

The previous prime is 12517133. The next prime is 12517157. The reversal of 12517142 is 24171521.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 938 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (1289817).

Almost surely, 2^12517142 is an apocalyptic number.

12517142 is a deficient number, since it is larger than the sum of its proper divisors (8119930).

12517142 is a wasteful number, since it uses less digits than its factorization.

12517142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303.

The product of its digits is 560, while the sum is 23.

The square root of 12517142 is about 3537.9573202626. The cubic root of 12517142 is about 232.1854813769.

Adding to 12517142 its reverse (24171521), we get a palindrome (36688663).

The spelling of 12517142 in words is "twelve million, five hundred seventeen thousand, one hundred forty-two".