11965197 has 16 divisors (see below), whose sum is σ = 16712640. Its totient is φ = 7604352.

The previous prime is 11965181. The next prime is 11965207. The reversal of 11965197 is 79156911.

11965197 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11965197 - 2⁴ = 11965181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11965157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6393 + ... + 8049.

It is an arithmetic number, because the mean of its divisors is an integer number (1044540).

Almost surely, 2^11965197 is an apocalyptic number.

It is an amenable number.

11965197 is a deficient number, since it is larger than the sum of its proper divisors (4747443).

11965197 is a wasteful number, since it uses less digits than its factorization.

11965197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772.

The product of its digits is 17010, while the sum is 39.

The square root of 11965197 is about 3459.0745872271. The cubic root of 11965197 is about 228.7213036952.

The spelling of 11965197 in words is "eleven million, nine hundred sixty-five thousand, one hundred ninety-seven".