12169957 has 2 divisors, whose sum is σ = 12169958. Its totient is φ = 12169956.

The previous prime is 12169933. The next prime is 12169973. The reversal of 12169957 is 75996121.

12169957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 329476 = 3441^2 + 574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12169957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12160957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6084978 + 6084979.

It is an arithmetic number, because the mean of its divisors is an integer number (6084979).

Almost surely, 2^12169957 is an apocalyptic number.

It is an amenable number.

12169957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12169957 is an equidigital number, since it uses as much as digits as its factorization.

12169957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 12169957 is about 3488.5465454828. The cubic root of 12169957 is about 230.0186311309.

The spelling of 12169957 in words is "twelve million, one hundred sixty-nine thousand, nine hundred fifty-seven".