5158165 has 4 divisors (see below), whose sum is σ = 6189804. Its totient is φ = 4126528.

The previous prime is 5158117. The next prime is 5158189. The reversal of 5158165 is 5618515.

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 2196324 + 2961841 = 1482^2 + 1721^2 .

It is a cyclic number.

It is not a de Polignac number, because 5158165 - 2⁷ = 5158037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515812 + ... + 515821.

It is an arithmetic number, because the mean of its divisors is an integer number (1547451).

Almost surely, 2^5158165 is an apocalyptic number.

It is an amenable number.

5158165 is a deficient number, since it is larger than the sum of its proper divisors (1031639).

5158165 is a wasteful number, since it uses less digits than its factorization.

5158165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031638.

The product of its digits is 6000, while the sum is 31.

The square root of 5158165 is about 2271.1593955511. The cubic root of 5158165 is about 172.7819655140.

The spelling of 5158165 in words is "five million, one hundred fifty-eight thousand, one hundred sixty-five".