12516142 has 16 divisors (see below), whose sum is σ = 19367280. Its totient is φ = 6063552.

The previous prime is 12516137. The next prime is 12516169. The reversal of 12516142 is 24161521.

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, 7888 + ... + 9340.

It is an arithmetic number, because the mean of its divisors is an integer number (1210455).

Almost surely, 2^12516142 is an apocalyptic number.

12516142 is a deficient number, since it is larger than the sum of its proper divisors (6851138).

12516142 is a wasteful number, since it uses less digits than its factorization.

12516142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587.

The product of its digits is 480, while the sum is 22.

The square root of 12516142 is about 3537.8159929538. The cubic root of 12516142 is about 232.1792980787.

Adding to 12516142 its reverse (24161521), we get a palindrome (36677663).

The spelling of 12516142 in words is "twelve million, five hundred sixteen thousand, one hundred forty-two".