215136300 has 72 divisors (see below), whose sum is σ = 628963216. Its totient is φ = 56770560.

The previous prime is 215136289. The next prime is 215136301. The reversal of 215136300 is 3631512.

It is not an unprimeable number, because it can be changed into a prime (215136301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25404 + ... + 32796.

Almost surely, 2^215136300 is an apocalyptic number.

215136300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215136300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314481608).

215136300 is an abundant number, since it is smaller than the sum of its proper divisors (413826916).

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

215136300 is a wasteful number, since it uses less digits than its factorization.

215136300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507 (or 7500 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 215136300 is about 14667.5253536512. The cubic root of 215136300 is about 599.1992094775.

Adding to 215136300 its reverse (3631512), we get a palindrome (218767812).

The spelling of 215136300 in words is "two hundred fifteen million, one hundred thirty-six thousand, three hundred".