20260169 has 2 divisors, whose sum is σ = 20260170. Its totient is φ = 20260168.

The previous prime is 20260159. The next prime is 20260189. The reversal of 20260169 is 96106202.

20260169 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 8094025 = 3488^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 20260169 - 2⁸ = 20259913 is a prime.

It is a super-2 number, since 2×20260169² = 820948895817122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20260159) 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, 10130084 + 10130085.

It is an arithmetic number, because the mean of its divisors is an integer number (10130085).

Almost surely, 2^20260169 is an apocalyptic number.

It is an amenable number.

20260169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20260169 is an equidigital number, since it uses as much as digits as its factorization.

20260169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20260169 is about 4501.1297470746. The cubic root of 20260169 is about 272.6137067201.

The spelling of 20260169 in words is "twenty million, two hundred sixty thousand, one hundred sixty-nine".