215133118 has 16 divisors (see below), whose sum is σ = 333490176. Its totient is φ = 103977720.

The previous prime is 215133103. The next prime is 215133137. The reversal of 215133118 is 811331512.

It is a junction number, because it is equal to n+sod(n) for n = 215133092 and 215133101.

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, 79455 + ... + 82117.

It is an arithmetic number, because the mean of its divisors is an integer number (20843136).

Almost surely, 2^215133118 is an apocalyptic number.

215133118 is a deficient number, since it is larger than the sum of its proper divisors (118357058).

215133118 is a wasteful number, since it uses less digits than its factorization.

215133118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999.

The product of its digits is 720, while the sum is 25.

The square root of 215133118 is about 14667.4168823280. The cubic root of 215133118 is about 599.1962552863.

The spelling of 215133118 in words is "two hundred fifteen million, one hundred thirty-three thousand, one hundred eighteen".