12706142 has 4 divisors (see below), whose sum is σ = 19059216. Its totient is φ = 6353070.

The previous prime is 12706139. The next prime is 12706151. The reversal of 12706142 is 24160721.

12706142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12706142² = 322892089048328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3176534 + ... + 3176537.

It is an arithmetic number, because the mean of its divisors is an integer number (4764804).

Almost surely, 2^12706142 is an apocalyptic number.

12706142 is a deficient number, since it is larger than the sum of its proper divisors (6353074).

12706142 is an equidigital number, since it uses as much as digits as its factorization.

12706142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353073.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12706142 is about 3564.5675754571. The cubic root of 12706142 is about 233.3482607230.

Adding to 12706142 its reverse (24160721), we get a palindrome (36866863).

The spelling of 12706142 in words is "twelve million, seven hundred six thousand, one hundred forty-two".