11968169 has 4 divisors (see below), whose sum is σ = 12074196. Its totient is φ = 11862144.

The previous prime is 11968141. The next prime is 11968189. The reversal of 11968169 is 96186911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96186911 = 19 ⋅5062469.

It can be written as a sum of positive squares in 2 ways, for example, as 2890000 + 9078169 = 1700^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 11968169 - 2⁸ = 11967913 is a prime.

It is a super-2 number, since 2×11968169² = 286474138425122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11968129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52844 + ... + 53069.

It is an arithmetic number, because the mean of its divisors is an integer number (3018549).

Almost surely, 2^11968169 is an apocalyptic number.

It is an amenable number.

11968169 is a deficient number, since it is larger than the sum of its proper divisors (106027).

11968169 is a wasteful number, since it uses less digits than its factorization.

11968169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106026.

The product of its digits is 23328, while the sum is 41.

The square root of 11968169 is about 3459.5041552222. The cubic root of 11968169 is about 228.7402392642.

The spelling of 11968169 in words is "eleven million, nine hundred sixty-eight thousand, one hundred sixty-nine".