11975144 has 32 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5691840.

The previous prime is 11975143. The next prime is 11975147. The reversal of 11975144 is 44157911.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11975144.

It is not an unprimeable number, because it can be changed into a prime (11975143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16109 + ... + 16835.

It is an arithmetic number, because the mean of its divisors is an integer number (737100).

Almost surely, 2^11975144 is an apocalyptic number.

It is an amenable number.

11975144 is a deficient number, since it is larger than the sum of its proper divisors (11612056).

11975144 is a wasteful number, since it uses less digits than its factorization.

11975144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 829 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 11975144 is about 3460.5121008313. The cubic root of 11975144 is about 228.7846669269.

The spelling of 11975144 in words is "eleven million, nine hundred seventy-five thousand, one hundred forty-four".