102899 has 4 divisors (see below), whose sum is σ = 105336. Its totient is φ = 100464.

The previous prime is 102881. The next prime is 102911. The reversal of 102899 is 998201.

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 102899 - 2⁸ = 102643 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102899.

It is not an unprimeable number, because it can be changed into a prime (102829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (26334).

2¹⁰²⁸⁹⁹ is an apocalyptic number.

102899 is a deficient number, since it is larger than the sum of its proper divisors (2437).

102899 is an equidigital number, since it uses as much as digits as its factorization.

102899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 102899 is about 320.7787399439. The cubic root of 102899 is about 46.8601547064.

It can be divided in two parts, 102 and 899, that added together give a palindrome (1001).

The spelling of 102899 in words is "one hundred two thousand, eight hundred ninety-nine".