5164021 has 2 divisors, whose sum is σ = 5164022. Its totient is φ = 5164020.

The previous prime is 5164013. The next prime is 5164069. The reversal of 5164021 is 1204615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3663396 + 1500625 = 1914^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 5164021 - 2³ = 5164013 is a prime.

It is a super-2 number, since 2×5164021² = 53334225776882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5164021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5164091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582010 + 2582011.

It is an arithmetic number, because the mean of its divisors is an integer number (2582011).

Almost surely, 2^5164021 is an apocalyptic number.

It is an amenable number.

5164021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5164021 is an equidigital number, since it uses as much as digits as its factorization.

5164021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5164021 is about 2272.4482392345. The cubic root of 5164021 is about 172.8473265182.

Adding to 5164021 its reverse (1204615), we get a palindrome (6368636).

The spelling of 5164021 in words is "five million, one hundred sixty-four thousand, twenty-one".