11819197 has 16 divisors (see below), whose sum is σ = 13552000. Its totient is φ = 10217664.

The previous prime is 11819189. The next prime is 11819237. The reversal of 11819197 is 79191811.

It is a cyclic number.

It is not a de Polignac number, because 11819197 - 2³ = 11819189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26704 + ... + 27142.

It is an arithmetic number, because the mean of its divisors is an integer number (847000).

Almost surely, 2^11819197 is an apocalyptic number.

It is an amenable number.

11819197 is a deficient number, since it is larger than the sum of its proper divisors (1732803).

11819197 is a wasteful number, since it uses less digits than its factorization.

11819197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 4536, while the sum is 37.

The square root of 11819197 is about 3437.9059033080. The cubic root of 11819197 is about 227.7872039900.

The spelling of 11819197 in words is "eleven million, eight hundred nineteen thousand, one hundred ninety-seven".