105566497 has 2 divisors, whose sum is σ = 105566498. Its totient is φ = 105566496.

The previous prime is 105566477. The next prime is 105566509. The reversal of 105566497 is 794665501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 40908816 = 8041^2 + 6396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105566497 is a prime.

It is a super-2 number, since 2×105566497² = 22288570577702018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105566437) 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, 52783248 + 52783249.

It is an arithmetic number, because the mean of its divisors is an integer number (52783249).

Almost surely, 2^105566497 is an apocalyptic number.

It is an amenable number.

105566497 is a deficient number, since it is larger than the sum of its proper divisors (1).

105566497 is an equidigital number, since it uses as much as digits as its factorization.

105566497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 105566497 is about 10274.5558054838. Note that the first 3 decimals coincide. The cubic root of 105566497 is about 472.6163083497.

The spelling of 105566497 in words is "one hundred five million, five hundred sixty-six thousand, four hundred ninety-seven".