3105161 has 4 divisors (see below), whose sum is σ = 3240192. Its totient is φ = 2970132.

The previous prime is 3105143. The next prime is 3105163. The reversal of 3105161 is 1615013.

3105161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1615013 = 37 ⋅43649.

It is a cyclic number.

It is not a de Polignac number, because 3105161 - 2⁶ = 3105097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3105163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67481 + ... + 67526.

It is an arithmetic number, because the mean of its divisors is an integer number (810048).

Almost surely, 2^3105161 is an apocalyptic number.

It is an amenable number.

3105161 is a deficient number, since it is larger than the sum of its proper divisors (135031).

3105161 is a wasteful number, since it uses less digits than its factorization.

3105161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135030.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 3105161 is about 1762.1467021789. The cubic root of 3105161 is about 145.8908454158.

The spelling of 3105161 in words is "three million, one hundred five thousand, one hundred sixty-one".