133345165 has 8 divisors (see below), whose sum is σ = 160462080. Its totient is φ = 106377552.

The previous prime is 133345141. The next prime is 133345181. The reversal of 133345165 is 561543331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133345165 - 2¹⁷ = 133214093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35349 + ... + 38938.

It is an arithmetic number, because the mean of its divisors is an integer number (20057760).

Almost surely, 2^133345165 is an apocalyptic number.

It is an amenable number.

133345165 is a deficient number, since it is larger than the sum of its proper divisors (27116915).

133345165 is an equidigital number, since it uses as much as digits as its factorization.

133345165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74651.

The product of its digits is 16200, while the sum is 31.

The square root of 133345165 is about 11547.5176986225. The cubic root of 133345165 is about 510.8880656784. Note that the first 3 decimals are identical.

Adding to 133345165 its reverse (561543331), we get a palindrome (694888496).

The spelling of 133345165 in words is "one hundred thirty-three million, three hundred forty-five thousand, one hundred sixty-five".