12697159 has 4 divisors (see below), whose sum is σ = 12704904. Its totient is φ = 12689416.

The previous prime is 12697151. The next prime is 12697171. The reversal of 12697159 is 95179621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 95179621 = 419 ⋅227159.

It is a cyclic number.

It is not a de Polignac number, because 12697159 - 2³ = 12697151 is a prime.

It is a super-2 number, since 2×12697159² = 322435693342562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697151) 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 in 3 ways as a sum of consecutive naturals, for example, 337 + ... + 5050.

It is an arithmetic number, because the mean of its divisors is an integer number (3176226).

Almost surely, 2^12697159 is an apocalyptic number.

12697159 is a deficient number, since it is larger than the sum of its proper divisors (7745).

12697159 is an equidigital number, since it uses as much as digits as its factorization.

12697159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7744.

The product of its digits is 34020, while the sum is 40.

The square root of 12697159 is about 3563.3073120347. The cubic root of 12697159 is about 233.2932568358.

The spelling of 12697159 in words is "twelve million, six hundred ninety-seven thousand, one hundred fifty-nine".