12015142 has 8 divisors (see below), whose sum is σ = 18122832. Its totient is φ = 5974200.

The previous prime is 12015139. The next prime is 12015167. The reversal of 12015142 is 24151021.

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, 16234 + ... + 16957.

It is an arithmetic number, because the mean of its divisors is an integer number (2265354).

Almost surely, 2^12015142 is an apocalyptic number.

12015142 is a deficient number, since it is larger than the sum of its proper divisors (6107690).

12015142 is a wasteful number, since it uses less digits than its factorization.

12015142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33374.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12015142 is about 3466.2864855635. The cubic root of 12015142 is about 229.0391039418.

Adding to 12015142 its reverse (24151021), we get a palindrome (36166163).

The spelling of 12015142 in words is "twelve million, fifteen thousand, one hundred forty-two".