5161669 has 2 divisors, whose sum is σ = 5161670. Its totient is φ = 5161668.

The previous prime is 5161643. The next prime is 5161679. The reversal of 5161669 is 9661615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3629025 + 1532644 = 1905^2 + 1238^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161669 - 2¹⁵ = 5128901 is a prime.

It is a super-2 number, since 2×5161669² = 53285653731122, which contains 22 as substring.

5161669 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5161609) 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 as a sum of consecutive naturals, namely, 2580834 + 2580835.

It is an arithmetic number, because the mean of its divisors is an integer number (2580835).

Almost surely, 2^5161669 is an apocalyptic number.

It is an amenable number.

5161669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161669 is an equidigital number, since it uses as much as digits as its factorization.

5161669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 5161669 is about 2271.9306767593. The cubic root of 5161669 is about 172.8210809079.

The spelling of 5161669 in words is "five million, one hundred sixty-one thousand, six hundred sixty-nine".