12190117 has 2 divisors, whose sum is σ = 12190118. Its totient is φ = 12190116.

The previous prime is 12190109. The next prime is 12190133. The reversal of 12190117 is 71109121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 5225796 = 2639^2 + 2286^2 .

It is an emirp because it is prime and its reverse (71109121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12190117 - 2³ = 12190109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12190147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6095058 + 6095059.

It is an arithmetic number, because the mean of its divisors is an integer number (6095059).

Almost surely, 2^12190117 is an apocalyptic number.

It is an amenable number.

12190117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12190117 is an equidigital number, since it uses as much as digits as its factorization.

12190117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 12190117 is about 3491.4348053487. The cubic root of 12190117 is about 230.1455726204.

Adding to 12190117 its reverse (71109121), we get a palindrome (83299238).

The spelling of 12190117 in words is "twelve million, one hundred ninety thousand, one hundred seventeen".