165312033 has 8 divisors (see below), whose sum is σ = 220506528. Its totient is φ = 110162784.

The previous prime is 165312011. The next prime is 165312061. The reversal of 165312033 is 330213561.

It is a happy number.

165312033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 165312033 - 2⁶ = 165311969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165311994 and 165312012.

It is not an unprimeable number, because it can be changed into a prime (165312733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (27563316).

Almost surely, 2^165312033 is an apocalyptic number.

It is an amenable number.

165312033 is a deficient number, since it is larger than the sum of its proper divisors (55194495).

165312033 is a wasteful number, since it uses less digits than its factorization.

165312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22623.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 165312033 is about 12857.3727098502. The cubic root of 165312033 is about 548.8261831089.

Adding to 165312033 its reverse (330213561), we get a palindrome (495525594).

The spelling of 165312033 in words is "one hundred sixty-five million, three hundred twelve thousand, thirty-three".