102086911 has 4 divisors (see below), whose sum is σ = 102114832. Its totient is φ = 102058992.

The previous prime is 102086909. The next prime is 102086939. The reversal of 102086911 is 119680201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102086911 - 2¹ = 102086909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102086911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102086011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7470 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (25528708).

Almost surely, 2^102086911 is an apocalyptic number.

102086911 is a deficient number, since it is larger than the sum of its proper divisors (27921).

102086911 is an equidigital number, since it uses as much as digits as its factorization.

102086911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27920.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 102086911 is about 10103.8067578512. The cubic root of 102086911 is about 467.3655399864.

The spelling of 102086911 in words is "one hundred two million, eighty-six thousand, nine hundred eleven".