12142862 has 16 divisors (see below), whose sum is σ = 20301840. Its totient is φ = 5413248.

The previous prime is 12142829. The next prime is 12142891. The reversal of 12142862 is 26824121.

12142862 = 9² + 10² + ... + 331².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8753 + ... + 10044.

It is an arithmetic number, because the mean of its divisors is an integer number (1268865).

Almost surely, 2^12142862 is an apocalyptic number.

12142862 is a deficient number, since it is larger than the sum of its proper divisors (8158978).

12142862 is a wasteful number, since it uses less digits than its factorization.

12142862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18835.

The product of its digits is 1536, while the sum is 26.

The square root of 12142862 is about 3484.6609591178. The cubic root of 12142862 is about 229.8478010082.

Adding to 12142862 its reverse (26824121), we get a palindrome (38966983).

The spelling of 12142862 in words is "twelve million, one hundred forty-two thousand, eight hundred sixty-two".