5165813 has 2 divisors, whose sum is σ = 5165814. Its totient is φ = 5165812.

The previous prime is 5165803. The next prime is 5165821. The reversal of 5165813 is 3185615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3378244 + 1787569 = 1838^2 + 1337^2 .

It is a cyclic number.

It is not a de Polignac number, because 5165813 - 2⁶ = 5165749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5165803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582906 + 2582907.

It is an arithmetic number, because the mean of its divisors is an integer number (2582907).

Almost surely, 2^5165813 is an apocalyptic number.

It is an amenable number.

5165813 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165813 is an equidigital number, since it uses as much as digits as its factorization.

5165813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The square root of 5165813 is about 2272.8424934430. The cubic root of 5165813 is about 172.8673178252.

The spelling of 5165813 in words is "five million, one hundred sixty-five thousand, eight hundred thirteen".