11867144 has 8 divisors (see below), whose sum is σ = 22250910. Its totient is φ = 5933568.

The previous prime is 11867137. The next prime is 11867179. The reversal of 11867144 is 44176811.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 5466244 = 2530^2 + 2338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11867144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 741689 + ... + 741704.

Almost surely, 2^11867144 is an apocalyptic number.

It is an amenable number.

11867144 is a deficient number, since it is larger than the sum of its proper divisors (10383766).

11867144 is a wasteful number, since it uses less digits than its factorization.

11867144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483399 (or 1483395 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 11867144 is about 3444.8721311538. The cubic root of 11867144 is about 228.0948102665.

The spelling of 11867144 in words is "eleven million, eight hundred sixty-seven thousand, one hundred forty-four".