105719849 has 2 divisors, whose sum is σ = 105719850. Its totient is φ = 105719848.

The previous prime is 105719833. The next prime is 105719869. The reversal of 105719849 is 948917501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86359849 + 19360000 = 9293^2 + 4400^2 .

It is a cyclic number.

It is not a de Polignac number, because 105719849 - 2⁴ = 105719833 is a prime.

It is a super-2 number, since 2×105719849² = 22353372945165602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105719869) 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, 52859924 + 52859925.

It is an arithmetic number, because the mean of its divisors is an integer number (52859925).

Almost surely, 2^105719849 is an apocalyptic number.

It is an amenable number.

105719849 is a deficient number, since it is larger than the sum of its proper divisors (1).

105719849 is an equidigital number, since it uses as much as digits as its factorization.

105719849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 105719849 is about 10282.0158043061. The cubic root of 105719849 is about 472.8450475548.

The spelling of 105719849 in words is "one hundred five million, seven hundred nineteen thousand, eight hundred forty-nine".