30156 has 24 divisors (see below), whose sum is σ = 80640. Its totient is φ = 8592.

The previous prime is 30139. The next prime is 30161. The reversal of 30156 is 65103.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30156.

It is an unprimeable number.

30156 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, 96 + ... + 263.

It is an arithmetic number, because the mean of its divisors is an integer number (3360).

2³⁰¹⁵⁶ is an apocalyptic number.

It is an amenable number.

30156 is an abundant number, since it is smaller than the sum of its proper divisors (50484).

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 (40320).

30156 is a wasteful number, since it uses less digits than its factorization.

30156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30156 is about 173.6548300509. The cubic root of 30156 is about 31.1260906700.

Adding to 30156 its reverse (65103), we get a palindrome (95259).

The spelling of 30156 in words is "thirty thousand, one hundred fifty-six".