215316030 has 16 divisors (see below), whose sum is σ = 516758544. Its totient is φ = 57417600.

The previous prime is 215316029. The next prime is 215316047. The reversal of 215316030 is 30613512.

It is a junction number, because it is equal to n+sod(n) for n = 215315988 and 215316006.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3588571 + ... + 3588630.

It is an arithmetic number, because the mean of its divisors is an integer number (32297409).

Almost surely, 2^215316030 is an apocalyptic number.

215316030 is an abundant number, since it is smaller than the sum of its proper divisors (301442514).

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

215316030 is a wasteful number, since it uses less digits than its factorization.

215316030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177211.

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

The square root of 215316030 is about 14673.6508749527. The cubic root of 215316030 is about 599.3660248061.

Adding to 215316030 its reverse (30613512), we get a palindrome (245929542).

The spelling of 215316030 in words is "two hundred fifteen million, three hundred sixteen thousand, thirty".