105969217 has 2 divisors, whose sum is σ = 105969218. Its totient is φ = 105969216.

The previous prime is 105969203. The next prime is 105969223. The reversal of 105969217 is 712969501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104837121 + 1132096 = 10239^2 + 1064^2 .

It is an emirp because it is prime and its reverse (712969501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105969217 is a prime.

It is a super-2 number, since 2×105969217² = 22458949903186178, 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 105969217.

It is not a weakly prime, because it can be changed into another prime (105969287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52984608 + 52984609.

It is an arithmetic number, because the mean of its divisors is an integer number (52984609).

Almost surely, 2^105969217 is an apocalyptic number.

It is an amenable number.

105969217 is a deficient number, since it is larger than the sum of its proper divisors (1).

105969217 is an equidigital number, since it uses as much as digits as its factorization.

105969217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 105969217 is about 10294.1350778004. The cubic root of 105969217 is about 473.2165319925.

The spelling of 105969217 in words is "one hundred five million, nine hundred sixty-nine thousand, two hundred seventeen".