5161165 has 4 divisors (see below), whose sum is σ = 6193404. Its totient is φ = 4128928.

The previous prime is 5161139. The next prime is 5161181. The reversal of 5161165 is 5611615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2328676 + 2832489 = 1526^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161165 - 2⁵ = 5161133 is a prime.

It is a Duffinian number.

5161165 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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, 516112 + ... + 516121.

It is an arithmetic number, because the mean of its divisors is an integer number (1548351).

Almost surely, 2^5161165 is an apocalyptic number.

It is an amenable number.

5161165 is a deficient number, since it is larger than the sum of its proper divisors (1032239).

5161165 is a wasteful number, since it uses less digits than its factorization.

5161165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032238.

The product of its digits is 900, while the sum is 25.

The square root of 5161165 is about 2271.8197551743. The cubic root of 5161165 is about 172.8154558113.

It can be divided in two parts, 516 and 1165, that added together give a square (1681 = 41²).

The spelling of 5161165 in words is "five million, one hundred sixty-one thousand, one hundred sixty-five".