133504542 has 24 divisors (see below), whose sum is σ = 291967416. Its totient is φ = 44084976.

The previous prime is 133504541. The next prime is 133504633. The reversal of 133504542 is 245405331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133504541) 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 11 ways as a sum of consecutive naturals, for example, 32733 + ... + 36584.

It is an arithmetic number, because the mean of its divisors is an integer number (12165309).

Almost surely, 2^133504542 is an apocalyptic number.

133504542 is an abundant number, since it is smaller than the sum of its proper divisors (158462874).

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

133504542 is a wasteful number, since it uses less digits than its factorization.

133504542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69432 (or 69429 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 133504542 is about 11554.4165581824. The cubic root of 133504542 is about 511.0915260961.

Adding to 133504542 its reverse (245405331), we get a palindrome (378909873).

The spelling of 133504542 in words is "one hundred thirty-three million, five hundred four thousand, five hundred forty-two".