3165121 has 4 divisors (see below), whose sum is σ = 3232512. Its totient is φ = 3097732.

The previous prime is 3165083. The next prime is 3165133. The reversal of 3165121 is 1215613.

3165121 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1215613 = 7 ⋅173659.

It is a cyclic number.

It is not a de Polignac number, because 3165121 - 2¹³ = 3156929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3165181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33625 + ... + 33718.

It is an arithmetic number, because the mean of its divisors is an integer number (808128).

Almost surely, 2^3165121 is an apocalyptic number.

It is an amenable number.

3165121 is a deficient number, since it is larger than the sum of its proper divisors (67391).

3165121 is an equidigital number, since it uses as much as digits as its factorization.

3165121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67390.

The product of its digits is 180, while the sum is 19.

The square root of 3165121 is about 1779.0786941561. The cubic root of 3165121 is about 146.8239056318.

The spelling of 3165121 in words is "three million, one hundred sixty-five thousand, one hundred twenty-one".