215130 has 32 divisors (see below), whose sum is σ = 528768. Its totient is φ = 56000.

The previous prime is 215123. The next prime is 215141. The reversal of 215130 is 31512.

215130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

215130 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 15 ways as a sum of consecutive naturals, for example, 2080 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (16524).

2²¹⁵¹³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264384).

215130 is an abundant number, since it is smaller than the sum of its proper divisors (313638).

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

215130 is a wasteful number, since it uses less digits than its factorization.

215130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 215130 is about 463.8210861960. The cubic root of 215130 is about 59.9193360485.

Adding to 215130 its reverse (31512), we get a palindrome (246642).

It can be divided in two parts, 21 and 5130, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 215130 in words is "two hundred fifteen thousand, one hundred thirty".