133020165 has 8 divisors (see below), whose sum is σ = 212832288. Its totient is φ = 70944080.

The previous prime is 133020137. The next prime is 133020227. The reversal of 133020165 is 561020331.

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

It is not a de Polignac number, because 133020165 - 2⁷ = 133020037 is a prime.

It is a Curzon number.

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, 4433991 + ... + 4434020.

It is an arithmetic number, because the mean of its divisors is an integer number (26604036).

Almost surely, 2^133020165 is an apocalyptic number.

133020165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133020165 is a deficient number, since it is larger than the sum of its proper divisors (79812123).

133020165 is an equidigital number, since it uses as much as digits as its factorization.

133020165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868019.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133020165 is about 11533.4368251619. The cubic root of 133020165 is about 510.4726682929.

Adding to 133020165 its reverse (561020331), we get a palindrome (694040496).

The spelling of 133020165 in words is "one hundred thirty-three million, twenty thousand, one hundred sixty-five".