12867161 has 8 divisors (see below), whose sum is σ = 13597920. Its totient is φ = 12141792.

The previous prime is 12867131. The next prime is 12867187. The reversal of 12867161 is 16176821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12867161 - 2¹⁰ = 12866137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12867131) by changing a digit.

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, 4181 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (1699740).

Almost surely, 2^12867161 is an apocalyptic number.

It is an amenable number.

12867161 is a deficient number, since it is larger than the sum of its proper divisors (730759).

12867161 is a wasteful number, since it uses less digits than its factorization.

12867161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its digits is 4032, while the sum is 32.

The square root of 12867161 is about 3587.0825192627. The cubic root of 12867161 is about 234.3298304894.

The spelling of 12867161 in words is "twelve million, eight hundred sixty-seven thousand, one hundred sixty-one".