133387104 has 48 divisors (see below), whose sum is σ = 358691760. Its totient is φ = 43376640.

The previous prime is 133387103. The next prime is 133387127. The reversal of 133387104 is 401783331.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133387103) 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, 13009 + ... + 20880.

It is an arithmetic number, because the mean of its divisors is an integer number (7472745).

Almost surely, 2^133387104 is an apocalyptic number.

It is an amenable number.

133387104 is an abundant number, since it is smaller than the sum of its proper divisors (225304656).

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

133387104 is a wasteful number, since it uses less digits than its factorization.

133387104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33943 (or 33935 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 133387104 is about 11549.3334872624. Note that the first 3 decimals coincide. The cubic root of 133387104 is about 510.9416206478.

The spelling of 133387104 in words is "one hundred thirty-three million, three hundred eighty-seven thousand, one hundred four".