12108869 has 4 divisors (see below), whose sum is σ = 12222144. Its totient is φ = 11995596.

The previous prime is 12108853. The next prime is 12108893. The reversal of 12108869 is 96880121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96880121 = 13 ⋅7452317.

It is a cyclic number.

It is not a de Polignac number, because 12108869 - 2⁴ = 12108853 is a prime.

It is a super-2 number, since 2×12108869² = 293249416918322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56477 + ... + 56690.

It is an arithmetic number, because the mean of its divisors is an integer number (3055536).

Almost surely, 2^12108869 is an apocalyptic number.

It is an amenable number.

12108869 is a deficient number, since it is larger than the sum of its proper divisors (113275).

12108869 is a wasteful number, since it uses less digits than its factorization.

12108869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113274.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12108869 is about 3479.7800217830. The cubic root of 12108869 is about 229.6331201943.

The spelling of 12108869 in words is "twelve million, one hundred eight thousand, eight hundred sixty-nine".