133401404 has 12 divisors (see below), whose sum is σ = 234322200.
Its totient is φ = 66452208.
The previous prime is 133401353. The next prime is 133401409. The reversal of 133401404 is 404104331.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (133401409) 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 3 ways as a sum of consecutive naturals, for example, 60914 + ... + 63065.
It is an arithmetic number, because the mean of its divisors is an integer number (19526850).
Almost surely, 2133401404 is an apocalyptic number.
It is an amenable number.
133401404 is a deficient number, since it is larger than the sum of its proper divisors (100920796).
133401404 is a wasteful number, since it uses less digits than its factorization.
133401404 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124252 (or 124250 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 133401404 is about 11549.9525540151.
The cubic root of 133401404 is about 510.9598787949.
Adding to 133401404 its reverse (404104331), we get a palindrome (537505735).
The spelling of 133401404 in words is "one hundred thirty-three million, four hundred one thousand, four hundred four".