133142065 has 24 divisors (see below), whose sum is σ = 188652672. Its totient is φ = 89923680.

The previous prime is 133142059. The next prime is 133142081. The reversal of 133142065 is 560241331.

It is not a de Polignac number, because 133142065 - 2³ = 133142057 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 12360 + ... + 20470.

It is an arithmetic number, because the mean of its divisors is an integer number (7860528).

Almost surely, 2^133142065 is an apocalyptic number.

It is an amenable number.

133142065 is a deficient number, since it is larger than the sum of its proper divisors (55510607).

133142065 is an equidigital number, since it uses as much as digits as its factorization.

133142065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8197 (or 8190 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133142065 is about 11538.7202496637. The cubic root of 133142065 is about 510.6285534795.

Adding to 133142065 its reverse (560241331), we get a palindrome (693383396).

The spelling of 133142065 in words is "one hundred thirty-three million, one hundred forty-two thousand, sixty-five".