165113003 has 4 divisors (see below), whose sum is σ = 180123288. Its totient is φ = 150102720.

The previous prime is 165112973. The next prime is 165113023. The reversal of 165113003 is 300311561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165113003 - 2⁶ = 165112939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165113023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7505126 + ... + 7505147.

It is an arithmetic number, because the mean of its divisors is an integer number (45030822).

Almost surely, 2^165113003 is an apocalyptic number.

165113003 is a deficient number, since it is larger than the sum of its proper divisors (15010285).

165113003 is a wasteful number, since it uses less digits than its factorization.

165113003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010284.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 165113003 is about 12849.6304616125. The cubic root of 165113003 is about 548.6058387090.

Adding to 165113003 its reverse (300311561), we get a palindrome (465424564).

The spelling of 165113003 in words is "one hundred sixty-five million, one hundred thirteen thousand, three".