133213134 has 32 divisors (see below), whose sum is σ = 273424896. Its totient is φ = 43247360.

The previous prime is 133213121. The next prime is 133213159. The reversal of 133213134 is 431312331.

133213134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 133213134.

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 15 ways as a sum of consecutive naturals, for example, 62974 + ... + 65054.

It is an arithmetic number, because the mean of its divisors is an integer number (8544528).

Almost surely, 2^133213134 is an apocalyptic number.

133213134 is an abundant number, since it is smaller than the sum of its proper divisors (140211762).

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

133213134 is a wasteful number, since it uses less digits than its factorization.

133213134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360.

The product of its digits is 648, while the sum is 21.

The square root of 133213134 is about 11541.7994264326. The cubic root of 133213134 is about 510.7193923030.

Adding to 133213134 its reverse (431312331), we get a palindrome (564525465).

The spelling of 133213134 in words is "one hundred thirty-three million, two hundred thirteen thousand, one hundred thirty-four".