133904346 has 16 divisors (see below), whose sum is σ = 268830144. Its totient is φ = 44464544.

The previous prime is 133904317. The next prime is 133904347. The reversal of 133904346 is 643409331.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133904347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40851 + ... + 44006.

It is an arithmetic number, because the mean of its divisors is an integer number (16801884).

Almost surely, 2^133904346 is an apocalyptic number.

133904346 is an abundant number, since it is smaller than the sum of its proper divisors (134925798).

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

133904346 is a wasteful number, since it uses less digits than its factorization.

133904346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85125.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 133904346 is about 11571.7045416827. The cubic root of 133904346 is about 511.6012036390.

The spelling of 133904346 in words is "one hundred thirty-three million, nine hundred four thousand, three hundred forty-six".