12135941 has 2 divisors, whose sum is σ = 12135942. Its totient is φ = 12135940.

The previous prime is 12135931. The next prime is 12135967. The reversal of 12135941 is 14953121.

It is an a-pointer prime, because the next prime (12135967) can be obtained adding 12135941 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11937025 + 198916 = 3455^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 12135941 - 2¹⁰ = 12134917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12135941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12135931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067970 + 6067971.

It is an arithmetic number, because the mean of its divisors is an integer number (6067971).

Almost surely, 2^12135941 is an apocalyptic number.

It is an amenable number.

12135941 is a deficient number, since it is larger than the sum of its proper divisors (1).

12135941 is an equidigital number, since it uses as much as digits as its factorization.

12135941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 12135941 is about 3483.6677510922. The cubic root of 12135941 is about 229.8041243484.

The spelling of 12135941 in words is "twelve million, one hundred thirty-five thousand, nine hundred forty-one".