20061269 has 2 divisors, whose sum is σ = 20061270. Its totient is φ = 20061268.

The previous prime is 20061199. The next prime is 20061271. The reversal of 20061269 is 96216002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 2739025 = 4162^2 + 1655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20061269 is a prime.

It is a super-2 number, since 2×20061269² = 804909027780722, which contains 22 as substring.

Together with 20061271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20063269) 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, 10030634 + 10030635.

It is an arithmetic number, because the mean of its divisors is an integer number (10030635).

Almost surely, 2^20061269 is an apocalyptic number.

It is an amenable number.

20061269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20061269 is an equidigital number, since it uses as much as digits as its factorization.

20061269 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 20061269 is about 4478.9807992444. The cubic root of 20061269 is about 271.7186618500.

The spelling of 20061269 in words is "twenty million, sixty-one thousand, two hundred sixty-nine".