215345130 has 256 divisors, whose sum is σ = 710664192. Its totient is φ = 40320000.

The previous prime is 215345129. The next prime is 215345149. The reversal of 215345130 is 31543512.

It is a self number, because there is not a number n which added to its sum of digits gives 215345130.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2132080 + ... + 2132180.

It is an arithmetic number, because the mean of its divisors is an integer number (2776032).

Almost surely, 2^215345130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215345130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355332096).

215345130 is an abundant number, since it is smaller than the sum of its proper divisors (495319062).

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

215345130 is a wasteful number, since it uses less digits than its factorization.

215345130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 215345130 is about 14674.6424147234. The cubic root of 215345130 is about 599.3930250650.

Adding to 215345130 its reverse (31543512), we get a palindrome (246888642).

The spelling of 215345130 in words is "two hundred fifteen million, three hundred forty-five thousand, one hundred thirty".