133204134 has 32 divisors (see below), whose sum is σ = 314968320. Its totient is φ = 36745632.

The previous prime is 133204091. The next prime is 133204139. The reversal of 133204134 is 431402331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 133204134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133204139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53464 + ... + 55899.

It is an arithmetic number, because the mean of its divisors is an integer number (9842760).

Almost surely, 2^133204134 is an apocalyptic number.

133204134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133204134 is an abundant number, since it is smaller than the sum of its proper divisors (181764186).

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

133204134 is a wasteful number, since it uses less digits than its factorization.

133204134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109404.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133204134 is about 11541.4095326351. The cubic root of 133204134 is about 510.7078904890.

Adding to 133204134 its reverse (431402331), we get a palindrome (564606465).

The spelling of 133204134 in words is "one hundred thirty-three million, two hundred four thousand, one hundred thirty-four".