133204434 has 16 divisors (see below), whose sum is σ = 290628000. Its totient is φ = 40364960.

The previous prime is 133204433. The next prime is 133204447. The reversal of 133204434 is 434402331.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133204433) 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, 1009059 + ... + 1009190.

It is an arithmetic number, because the mean of its divisors is an integer number (18164250).

Almost surely, 2^133204434 is an apocalyptic number.

133204434 is an abundant number, since it is smaller than the sum of its proper divisors (157423566).

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

133204434 is a wasteful number, since it uses less digits than its factorization.

133204434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018265.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 133204434 is about 11541.4225293072. The cubic root of 133204434 is about 510.7082738912.

Adding to 133204434 its reverse (434402331), we get a palindrome (567606765).

The spelling of 133204434 in words is "one hundred thirty-three million, two hundred four thousand, four hundred thirty-four".