101085899 has 2 divisors, whose sum is σ = 101085900. Its totient is φ = 101085898.

The previous prime is 101085883. The next prime is 101085937. The reversal of 101085899 is 998580101.

It is a weak prime.

It is an emirp because it is prime and its reverse (998580101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101085899 - 2⁴ = 101085883 is a prime.

It is not a weakly prime, because it can be changed into another prime (101085839) 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, 50542949 + 50542950.

It is an arithmetic number, because the mean of its divisors is an integer number (50542950).

Almost surely, 2^101085899 is an apocalyptic number.

101085899 is a deficient number, since it is larger than the sum of its proper divisors (1).

101085899 is an equidigital number, since it uses as much as digits as its factorization.

101085899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 101085899 is about 10054.1483478214. The cubic root of 101085899 is about 465.8329372840.

The spelling of 101085899 in words is "one hundred one million, eighty-five thousand, eight hundred ninety-nine".