12489199 has 4 divisors (see below), whose sum is σ = 12500800. Its totient is φ = 12477600.

The previous prime is 12489167. The next prime is 12489229. The reversal of 12489199 is 99198421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12489199 - 2⁵ = 12489167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12489109) 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, 3999 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (3125200).

Almost surely, 2^12489199 is an apocalyptic number.

12489199 is a deficient number, since it is larger than the sum of its proper divisors (11601).

12489199 is a wasteful number, since it uses less digits than its factorization.

12489199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600.

The product of its digits is 46656, while the sum is 43.

The square root of 12489199 is about 3534.0060837525. The cubic root of 12489199 is about 232.0125773502.

Subtracting from 12489199 its sum of digits (43), we obtain a square (12489156 = 3534²).

The spelling of 12489199 in words is "twelve million, four hundred eighty-nine thousand, one hundred ninety-nine".