133494918 has 8 divisors (see below), whose sum is σ = 266989848. Its totient is φ = 44498304.

The previous prime is 133494877. The next prime is 133494929. The reversal of 133494918 is 819494331.

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

133494918 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133494918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11124571 + ... + 11124582.

It is an arithmetic number, because the mean of its divisors is an integer number (33373731).

Almost surely, 2^133494918 is an apocalyptic number.

133494918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133494918 is a wasteful number, since it uses less digits than its factorization.

133494918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22249158.

The product of its digits is 93312, while the sum is 42.

The square root of 133494918 is about 11554.0000865501. Note that the first 4 decimals coincide. The cubic root of 133494918 is about 511.0792447086.

The spelling of 133494918 in words is "one hundred thirty-three million, four hundred ninety-four thousand, nine hundred eighteen".