11144471 has 4 divisors (see below), whose sum is σ = 12001752. Its totient is φ = 10287192.

The previous prime is 11144467. The next prime is 11144477. The reversal of 11144471 is 17444111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17444111 = 43 ⋅405677.

It is a cyclic number.

It is not a de Polignac number, because 11144471 - 2² = 11144467 is a prime.

It is a super-3 number, since 3×11144471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428621 + ... + 428646.

It is an arithmetic number, because the mean of its divisors is an integer number (3000438).

Almost surely, 2^11144471 is an apocalyptic number.

11144471 is a deficient number, since it is larger than the sum of its proper divisors (857281).

11144471 is an equidigital number, since it uses as much as digits as its factorization.

11144471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857280.

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

The square root of 11144471 is about 3338.3335663172. Note that the first 3 decimals coincide. The cubic root of 11144471 is about 223.3674156544.

Adding to 11144471 its reverse (17444111), we get a palindrome (28588582).

The spelling of 11144471 in words is "eleven million, one hundred forty-four thousand, four hundred seventy-one".