133545042 has 12 divisors (see below), whose sum is σ = 289347630. Its totient is φ = 44515008.

The previous prime is 133545019. The next prime is 133545059. The reversal of 133545042 is 240545331.

It can be written as a sum of positive squares in only one way, i.e., 107931321 + 25613721 = 10389^2 + 5061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133544997 and 133545015.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3709567 + ... + 3709602.

Almost surely, 2^133545042 is an apocalyptic number.

133545042 is an abundant number, since it is smaller than the sum of its proper divisors (155802588).

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

133545042 is a wasteful number, since it uses less digits than its factorization.

133545042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7419177 (or 7419174 counting only the distinct ones).

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

The square root of 133545042 is about 11556.1690018795. The cubic root of 133545042 is about 511.1432025254.

The spelling of 133545042 in words is "one hundred thirty-three million, five hundred forty-five thousand, forty-two".