9147 has 4 divisors (see below), whose sum is σ = 12200. Its totient is φ = 6096.

The previous prime is 9137. The next prime is 9151. The reversal of 9147 is 7419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7419 = 3 ⋅2473.

It is not a de Polignac number, because 9147 - 2¹⁰ = 8123 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 9147.

It is not an unprimeable number, because it can be changed into a prime (9127) 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, 1522 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (3050).

2⁹¹⁴⁷ is an apocalyptic number.

9147 is a deficient number, since it is larger than the sum of its proper divisors (3053).

9147 is a wasteful number, since it uses less digits than its factorization.

9147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052.

The product of its digits is 252, while the sum is 21.

The square root of 9147 is about 95.6399498118. The cubic root of 9147 is about 20.9134761954.

Subtracting from 9147 its reverse (7419), we obtain a cube (1728 = 12³).

The spelling of 9147 in words is "nine thousand, one hundred forty-seven".