12189757 has 2 divisors, whose sum is σ = 12189758. Its totient is φ = 12189756.

The previous prime is 12189733. The next prime is 12189781. The reversal of 12189757 is 75798121.

It is a balanced prime because it is at equal distance from previous prime (12189733) and next prime (12189781).

It can be written as a sum of positive squares in only one way, i.e., 11655396 + 534361 = 3414^2 + 731^2 .

It is a cyclic number.

It is not a de Polignac number, because 12189757 - 2¹¹ = 12187709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12189257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094878 + 6094879.

It is an arithmetic number, because the mean of its divisors is an integer number (6094879).

Almost surely, 2^12189757 is an apocalyptic number.

It is an amenable number.

12189757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12189757 is an equidigital number, since it uses as much as digits as its factorization.

12189757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 12189757 is about 3491.3832502319. The cubic root of 12189757 is about 230.1433070359.

The spelling of 12189757 in words is "twelve million, one hundred eighty-nine thousand, seven hundred fifty-seven".