213125130 has 96 divisors (see below), whose sum is σ = 582940800. Its totient is φ = 53919360.

The previous prime is 213125117. The next prime is 213125131. The reversal of 213125130 is 31521312.

213125130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213125131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308085 + ... + 308775.

It is an arithmetic number, because the mean of its divisors is an integer number (6072300).

Almost surely, 2^213125130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213125130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291470400).

213125130 is an abundant number, since it is smaller than the sum of its proper divisors (369815670).

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

213125130 is a wasteful number, since it uses less digits than its factorization.

213125130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 213125130 is about 14598.8057730761. The cubic root of 213125130 is about 597.3261855604.

Adding to 213125130 its reverse (31521312), we get a palindrome (244646442).

It can be divided in two parts, 2131 and 25130, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 213125130 in words is "two hundred thirteen million, one hundred twenty-five thousand, one hundred thirty".