133504156 has 6 divisors (see below), whose sum is σ = 233632280. Its totient is φ = 66752076.

The previous prime is 133504141. The next prime is 133504157. The reversal of 133504156 is 651405331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133504157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16688016 + ... + 16688023.

Almost surely, 2^133504156 is an apocalyptic number.

It is an amenable number.

133504156 is a deficient number, since it is larger than the sum of its proper divisors (100128124).

133504156 is a wasteful number, since it uses less digits than its factorization.

133504156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33376043 (or 33376041 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 133504156 is about 11554.3998546008. The cubic root of 133504156 is about 511.0910335248.

Adding to 133504156 its reverse (651405331), we get a palindrome (784909487).

The spelling of 133504156 in words is "one hundred thirty-three million, five hundred four thousand, one hundred fifty-six".