9145072 has 20 divisors (see below), whose sum is σ = 18097056. Its totient is φ = 4474880.

The previous prime is 9145069. The next prime is 9145109. The reversal of 9145072 is 2705419.

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 9145072.

It is a congruent number.

It is an unprimeable number.

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, 5329 + ... + 6832.

Almost surely, 2^9145072 is an apocalyptic number.

It is an amenable number.

9145072 is a deficient number, since it is larger than the sum of its proper divisors (8951984).

9145072 is a wasteful number, since it uses less digits than its factorization.

9145072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216 (or 12210 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 9145072 is about 3024.0820094700. The cubic root of 9145072 is about 209.1200671487.

The spelling of 9145072 in words is "nine million, one hundred forty-five thousand, seventy-two".