9144009 has 20 divisors (see below), whose sum is σ = 15611904. Its totient is φ = 5224824.

The previous prime is 9144007. The next prime is 9144029. The reversal of 9144009 is 9004419.

It is not a de Polignac number, because 9144009 - 2¹ = 9144007 is a prime.

It is a super-2 number, since 2×9144009² = 167225801184162, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9144001) 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 19 ways as a sum of consecutive naturals, for example, 7497 + ... + 8630.

Almost surely, 2^9144009 is an apocalyptic number.

It is an amenable number.

9144009 is a deficient number, since it is larger than the sum of its proper divisors (6467895).

9144009 is a wasteful number, since it uses less digits than its factorization.

9144009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16146 (or 16137 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9144009 is about 3023.9062485467. The cubic root of 9144009 is about 209.1119643058. Note that the first 3 decimals are identical.

It can be divided in two parts, 91 and 44009, that added together give a square (44100 = 210²).

The spelling of 9144009 in words is "nine million, one hundred forty-four thousand, nine".