12489118 has 16 divisors (see below), whose sum is σ = 20880720. Its totient is φ = 5567616.

The previous prime is 12489109. The next prime is 12489119. The reversal of 12489118 is 81198421.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12489119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9021 + ... + 10312.

It is an arithmetic number, because the mean of its divisors is an integer number (1305045).

Almost surely, 2^12489118 is an apocalyptic number.

12489118 is a deficient number, since it is larger than the sum of its proper divisors (8391602).

12489118 is a wasteful number, since it uses less digits than its factorization.

12489118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371.

The product of its digits is 4608, while the sum is 34.

The square root of 12489118 is about 3533.9946236518. The cubic root of 12489118 is about 232.0120757686.

The spelling of 12489118 in words is "twelve million, four hundred eighty-nine thousand, one hundred eighteen".