11147144 has 16 divisors (see below), whose sum is σ = 20953500. Its totient is φ = 5559552.

The previous prime is 11147141. The next prime is 11147159. The reversal of 11147144 is 44174111.

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 4900 = 3338^2 + 70^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11147141) 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, 2132 + ... + 5180.

Almost surely, 2^11147144 is an apocalyptic number.

It is an amenable number.

11147144 is a deficient number, since it is larger than the sum of its proper divisors (9806356).

11147144 is a wasteful number, since it uses less digits than its factorization.

11147144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512 (or 3508 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 11147144 is about 3338.7338917620. The cubic root of 11147144 is about 223.3852724426.

The spelling of 11147144 in words is "eleven million, one hundred forty-seven thousand, one hundred forty-four".