215826130 has 64 divisors (see below), whose sum is σ = 448156800. Its totient is φ = 74165760.

The previous prime is 215826119. The next prime is 215826151. The reversal of 215826130 is 31628512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144990 + ... + 146470.

It is an arithmetic number, because the mean of its divisors is an integer number (7002450).

Almost surely, 2^215826130 is an apocalyptic number.

215826130 is an abundant number, since it is smaller than the sum of its proper divisors (232330670).

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

215826130 is a wasteful number, since it uses less digits than its factorization.

215826130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 215826130 is about 14691.0220883368. The cubic root of 215826130 is about 599.8389660432.

The spelling of 215826130 in words is "two hundred fifteen million, eight hundred twenty-six thousand, one hundred thirty".