105840859 has 2 divisors, whose sum is σ = 105840860. Its totient is φ = 105840858.

The previous prime is 105840821. The next prime is 105840877. The reversal of 105840859 is 958048501.

It is a strong prime.

It is an emirp because it is prime and its reverse (958048501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105840859 - 2⁹ = 105840347 is a prime.

It is a super-2 number, since 2×105840859² = 22404574867715762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105844859) 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, 52920429 + 52920430.

It is an arithmetic number, because the mean of its divisors is an integer number (52920430).

Almost surely, 2^105840859 is an apocalyptic number.

105840859 is a deficient number, since it is larger than the sum of its proper divisors (1).

105840859 is an equidigital number, since it uses as much as digits as its factorization.

105840859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 105840859 is about 10287.8986678524. The cubic root of 105840859 is about 473.0253894746.

The spelling of 105840859 in words is "one hundred five million, eight hundred forty thousand, eight hundred fifty-nine".