133542066 has 32 divisors (see below), whose sum is σ = 306046080. Its totient is φ = 38054016.

The previous prime is 133542061. The next prime is 133542077. The reversal of 133542066 is 660245331.

133542066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (133542061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12670 + ... + 20678.

It is an arithmetic number, because the mean of its divisors is an integer number (9563940).

Almost surely, 2^133542066 is an apocalyptic number.

133542066 is an abundant number, since it is smaller than the sum of its proper divisors (172504014).

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

133542066 is a wasteful number, since it uses less digits than its factorization.

133542066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 133542066 is about 11556.0402387669. The cubic root of 133542066 is about 511.1394056205.

Adding to 133542066 its reverse (660245331), we get a palindrome (793787397).

The spelling of 133542066 in words is "one hundred thirty-three million, five hundred forty-two thousand, sixty-six".