215041116 has 12 divisors (see below), whose sum is σ = 501762632. Its totient is φ = 71680368.

The previous prime is 215041111. The next prime is 215041117. The reversal of 215041116 is 611140512.

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

It is a junction number, because it is equal to n+sod(n) for n = 215041092 and 215041101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215041111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8960035 + ... + 8960058.

Almost surely, 2^215041116 is an apocalyptic number.

It is an amenable number.

215041116 is an abundant number, since it is smaller than the sum of its proper divisors (286721516).

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

215041116 is a wasteful number, since it uses less digits than its factorization.

215041116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920100 (or 17920098 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 215041116 is about 14664.2802755539. The cubic root of 215041116 is about 599.1108273821.

Adding to 215041116 its reverse (611140512), we get a palindrome (826181628).

The spelling of 215041116 in words is "two hundred fifteen million, forty-one thousand, one hundred sixteen".