105644017 has 2 divisors, whose sum is σ = 105644018. Its totient is φ = 105644016.

The previous prime is 105643997. The next prime is 105644027. The reversal of 105644017 is 710446501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 26718561 = 8884^2 + 5169^2 .

It is a cyclic number.

It is not a de Polignac number, because 105644017 - 2¹⁵ = 105611249 is a prime.

It is a super-2 number, since 2×105644017² = 22321316655792578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105644027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52822008 + 52822009.

It is an arithmetic number, because the mean of its divisors is an integer number (52822009).

Almost surely, 2^105644017 is an apocalyptic number.

It is an amenable number.

105644017 is a deficient number, since it is larger than the sum of its proper divisors (1).

105644017 is an equidigital number, since it uses as much as digits as its factorization.

105644017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 105644017 is about 10278.3275390503. The cubic root of 105644017 is about 472.7319645256.

The spelling of 105644017 in words is "one hundred five million, six hundred forty-four thousand, seventeen".