215413116 has 12 divisors (see below), whose sum is σ = 502630632. Its totient is φ = 71804368.

The previous prime is 215413111. The next prime is 215413123. The reversal of 215413116 is 611314512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215413111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8975535 + ... + 8975558.

It is an arithmetic number, because the mean of its divisors is an integer number (41885886).

Almost surely, 2^215413116 is an apocalyptic number.

It is an amenable number.

215413116 is an abundant number, since it is smaller than the sum of its proper divisors (287217516).

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

215413116 is a wasteful number, since it uses less digits than its factorization.

215413116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17951100 (or 17951098 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 215413116 is about 14676.9586767831. The cubic root of 215413116 is about 599.4560959852.

Adding to 215413116 its reverse (611314512), we get a palindrome (826727628).

The spelling of 215413116 in words is "two hundred fifteen million, four hundred thirteen thousand, one hundred sixteen".