12303189 has 24 divisors (see below), whose sum is σ = 19033560. Its totient is φ = 7630848.

The previous prime is 12303169. The next prime is 12303197. The reversal of 12303189 is 98130321.

It can be written as a sum of positive squares in 4 ways, for example, as 3392964 + 8910225 = 1842^2 + 2985^2 .

It is not a de Polignac number, because 12303189 - 2⁷ = 12303061 is a prime.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14427 + ... + 15255.

It is an arithmetic number, because the mean of its divisors is an integer number (793065).

Almost surely, 2^12303189 is an apocalyptic number.

It is an amenable number.

12303189 is a deficient number, since it is larger than the sum of its proper divisors (6730371).

12303189 is a wasteful number, since it uses less digits than its factorization.

12303189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12303189 is about 3507.5901984126. The cubic root of 12303189 is about 230.8549716524.

The spelling of 12303189 in words is "twelve million, three hundred three thousand, one hundred eighty-nine".