99156 has 12 divisors (see below), whose sum is σ = 231392. Its totient is φ = 33048.

The previous prime is 99149. The next prime is 99173. The reversal of 99156 is 65199.

99156 is nontrivially palindromic in base 5.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

99156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4120 + ... + 4143.

2⁹⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

99156 is an abundant number, since it is smaller than the sum of its proper divisors (132236).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115696).

99156 is a wasteful number, since it uses less digits than its factorization.

99156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270 (or 8268 counting only the distinct ones).

The product of its digits is 2430, while the sum is 30.

The square root of 99156 is about 314.8904571434. The cubic root of 99156 is about 46.2849358634.

The spelling of 99156 in words is "ninety-nine thousand, one hundred fifty-six".