12709156 has 12 divisors (see below), whose sum is σ = 23208192. Its totient is φ = 6078248.

The previous prime is 12709141. The next prime is 12709199. The reversal of 12709156 is 65190721.

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 3 ways as a sum of consecutive naturals, for example, 68980 + ... + 69163.

It is an arithmetic number, because the mean of its divisors is an integer number (1934016).

Almost surely, 2^12709156 is an apocalyptic number.

It is an amenable number.

12709156 is a deficient number, since it is larger than the sum of its proper divisors (10499036).

12709156 is a wasteful number, since it uses less digits than its factorization.

12709156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138170 (or 138168 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 12709156 is about 3564.9903225675. The cubic root of 12709156 is about 233.3667099647.

Adding to 12709156 its reverse (65190721), we get a palindrome (77899877).

The spelling of 12709156 in words is "twelve million, seven hundred nine thousand, one hundred fifty-six".