133118215 has 8 divisors (see below), whose sum is σ = 160891920. Its totient is φ = 105727872.

The previous prime is 133118203. The next prime is 133118221. The reversal of 133118215 is 512811331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133118215 - 2⁷ = 133118087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133118215.

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, 95074 + ... + 96463.

It is an arithmetic number, because the mean of its divisors is an integer number (20111490).

Almost surely, 2^133118215 is an apocalyptic number.

133118215 is a deficient number, since it is larger than the sum of its proper divisors (27773705).

133118215 is a wasteful number, since it uses less digits than its factorization.

133118215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191681.

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

The square root of 133118215 is about 11537.6867265497. The cubic root of 133118215 is about 510.5980616930.

Adding to 133118215 its reverse (512811331), we get a palindrome (645929546).

The spelling of 133118215 in words is "one hundred thirty-three million, one hundred eighteen thousand, two hundred fifteen".