12489211 has 4 divisors (see below), whose sum is σ = 14273392. Its totient is φ = 10705032.

The previous prime is 12489167. The next prime is 12489229. The reversal of 12489211 is 11298421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11298421 = 17 ⋅664613.

It is a cyclic number.

It is not a de Polignac number, because 12489211 - 2⁷ = 12489083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12489211.

It is not an unprimeable number, because it can be changed into a prime (12489241) 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, 892080 + ... + 892093.

It is an arithmetic number, because the mean of its divisors is an integer number (3568348).

Almost surely, 2^12489211 is an apocalyptic number.

12489211 is a deficient number, since it is larger than the sum of its proper divisors (1784181).

12489211 is an equidigital number, since it uses as much as digits as its factorization.

12489211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784180.

The product of its digits is 1152, while the sum is 28.

The square root of 12489211 is about 3534.0077815421. The cubic root of 12489211 is about 232.0126516584.

The spelling of 12489211 in words is "twelve million, four hundred eighty-nine thousand, two hundred eleven".