12869144 has 16 divisors (see below), whose sum is σ = 25179120. Its totient is φ = 6154720.

The previous prime is 12869141. The next prime is 12869147. The reversal of 12869144 is 44196821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12869141) and next prime (12869147).

It is a super-2 number, since 2×12869144² = 331229734585472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12869141) 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, 34787 + ... + 35154.

It is an arithmetic number, because the mean of its divisors is an integer number (1573695).

Almost surely, 2^12869144 is an apocalyptic number.

It is an amenable number.

12869144 is a deficient number, since it is larger than the sum of its proper divisors (12309976).

12869144 is a wasteful number, since it uses less digits than its factorization.

12869144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69970 (or 69966 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12869144 is about 3587.3589170865. The cubic root of 12869144 is about 234.3418676483.

The spelling of 12869144 in words is "twelve million, eight hundred sixty-nine thousand, one hundred forty-four".