20067169 has 2 divisors, whose sum is σ = 20067170. Its totient is φ = 20067168.

The previous prime is 20067149. The next prime is 20067233. The reversal of 20067169 is 96176002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 4950625 = 3888^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 20067169 - 2¹³ = 20058977 is a prime.

It is a super-2 number, since 2×20067169² = 805382543349122, which contains 22 as substring.

It is equal to p_1274638 and since 20067169 and 1274638 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20067169.

It is not a weakly prime, because it can be changed into another prime (20067119) 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, 10033584 + 10033585.

It is an arithmetic number, because the mean of its divisors is an integer number (10033585).

Almost surely, 2^20067169 is an apocalyptic number.

It is an amenable number.

20067169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20067169 is an equidigital number, since it uses as much as digits as its factorization.

20067169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20067169 is about 4479.6393828075. The cubic root of 20067169 is about 271.7452966385.

The spelling of 20067169 in words is "twenty million, sixty-seven thousand, one hundred sixty-nine".