133404612 has 48 divisors (see below), whose sum is σ = 346816512. Its totient is φ = 39563680.

The previous prime is 133404599. The next prime is 133404613. The reversal of 133404612 is 216404331.

It is not an unprimeable number, because it can be changed into a prime (133404613) by changing a digit.

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, 4548 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (7225344).

Almost surely, 2^133404612 is an apocalyptic number.

133404612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133404612 is an abundant number, since it is smaller than the sum of its proper divisors (213411900).

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

133404612 is a wasteful number, since it uses less digits than its factorization.

133404612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21568 (or 21566 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 133404612 is about 11550.0914282096. The cubic root of 133404612 is about 510.9639745692.

Adding to 133404612 its reverse (216404331), we get a palindrome (349808943).

The spelling of 133404612 in words is "one hundred thirty-three million, four hundred four thousand, six hundred twelve".