105517799 has 2 divisors, whose sum is σ = 105517800. Its totient is φ = 105517798.

The previous prime is 105517787. The next prime is 105517801. The reversal of 105517799 is 997715501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105517799 - 2⁸ = 105517543 is a prime.

It is a super-2 number, since 2×105517799² = 22268011811608802, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 105517801, 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 (105517199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52758899 + 52758900.

It is an arithmetic number, because the mean of its divisors is an integer number (52758900).

Almost surely, 2^105517799 is an apocalyptic number.

105517799 is a deficient number, since it is larger than the sum of its proper divisors (1).

105517799 is an equidigital number, since it uses as much as digits as its factorization.

105517799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99225, while the sum is 44.

The square root of 105517799 is about 10272.1856973090. The cubic root of 105517799 is about 472.5436242767.

The spelling of 105517799 in words is "one hundred five million, five hundred seventeen thousand, seven hundred ninety-nine".