133386194 has 8 divisors (see below), whose sum is σ = 210609840. Its totient is φ = 63182916.

The previous prime is 133386191. The next prime is 133386203. The reversal of 133386194 is 491683331.

It is a happy number.

133386194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 3510163 = 133386194 / (1 + 3 + 3 + 3 + 8 + 6 + 1 + 9 + 4).

It is not an unprimeable number, because it can be changed into a prime (133386191) 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, 1755044 + ... + 1755119.

It is an arithmetic number, because the mean of its divisors is an integer number (26326230).

Almost surely, 2^133386194 is an apocalyptic number.

133386194 is a deficient number, since it is larger than the sum of its proper divisors (77223646).

133386194 is a wasteful number, since it uses less digits than its factorization.

133386194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510184.

The product of its digits is 46656, while the sum is 38.

The square root of 133386194 is about 11549.2940909824. The cubic root of 133386194 is about 510.9404587215.

The spelling of 133386194 in words is "one hundred thirty-three million, three hundred eighty-six thousand, one hundred ninety-four".