12790142 has 4 divisors (see below), whose sum is σ = 19185216. Its totient is φ = 6395070.

The previous prime is 12790109. The next prime is 12790147. The reversal of 12790142 is 24109721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790147) by changing a digit.

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 as a sum of consecutive naturals, namely, 3197534 + ... + 3197537.

It is an arithmetic number, because the mean of its divisors is an integer number (4796304).

Almost surely, 2^12790142 is an apocalyptic number.

12790142 is a deficient number, since it is larger than the sum of its proper divisors (6395074).

12790142 is an equidigital number, since it uses as much as digits as its factorization.

12790142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395073.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12790142 is about 3576.3308012543. The cubic root of 12790142 is about 233.8613516197.

Adding to 12790142 its reverse (24109721), we get a palindrome (36899863).

The spelling of 12790142 in words is "twelve million, seven hundred ninety thousand, one hundred forty-two".