133133404 has 24 divisors (see below), whose sum is σ = 235439568. Its totient is φ = 65869440.

The previous prime is 133133389. The next prime is 133133419. The reversal of 133133404 is 404331331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133133389) and next prime (133133419).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196314 + ... + 196990.

It is an arithmetic number, because the mean of its divisors is an integer number (9809982).

Almost surely, 2^133133404 is an apocalyptic number.

It is an amenable number.

133133404 is a deficient number, since it is larger than the sum of its proper divisors (102306164).

133133404 is a wasteful number, since it uses less digits than its factorization.

133133404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 133133404 is about 11538.3449419750. The cubic root of 133133404 is about 510.6174809714.

Adding to 133133404 its reverse (404331331), we get a palindrome (537464735).

The spelling of 133133404 in words is "one hundred thirty-three million, one hundred thirty-three thousand, four hundred four".