133043165 has 16 divisors (see below), whose sum is σ = 165167616. Its totient is φ = 102772800.

The previous prime is 133043153. The next prime is 133043179. The reversal of 133043165 is 561340331.

It is not a de Polignac number, because 133043165 - 2⁶ = 133043101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113030 + ... + 114200.

It is an arithmetic number, because the mean of its divisors is an integer number (10322976).

Almost surely, 2^133043165 is an apocalyptic number.

It is an amenable number.

133043165 is a deficient number, since it is larger than the sum of its proper divisors (32124451).

133043165 is a wasteful number, since it uses less digits than its factorization.

133043165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 133043165 is about 11534.4338829437. The cubic root of 133043165 is about 510.5020878794.

Adding to 133043165 its reverse (561340331), we get a palindrome (694383496).

The spelling of 133043165 in words is "one hundred thirty-three million, forty-three thousand, one hundred sixty-five".