9156 has 24 divisors (see below), whose sum is σ = 24640. Its totient is φ = 2592.

The previous prime is 9151. The next prime is 9157. The reversal of 9156 is 6519.

9156 is nontrivially palindromic in base 13.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 9156.

It is not an unprimeable number, because it can be changed into a prime (9151) by changing a digit.

9156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 138.

2⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12320).

9156 is an abundant number, since it is smaller than the sum of its proper divisors (15484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9156 is a wasteful number, since it uses less digits than its factorization.

9156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 121 counting only the distinct ones).

The product of its digits is 270, while the sum is 21.

The square root of 9156 is about 95.6869897112. The cubic root of 9156 is about 20.9203330733.

The spelling of 9156 in words is "nine thousand, one hundred fifty-six".