122899 has 8 divisors (see below), whose sum is σ = 142688. Its totient is φ = 103680.

The previous prime is 122891. The next prime is 122921. The reversal of 122899 is 998221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122899 - 2³ = 122891 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 122899.

It is not an unprimeable number, because it can be changed into a prime (122891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (17836).

2¹²²⁸⁹⁹ is an apocalyptic number.

122899 is a deficient number, since it is larger than the sum of its proper divisors (19789).

122899 is an equidigital number, since it uses as much as digits as its factorization.

122899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

The product of its digits is 2592, while the sum is 31.

The square root of 122899 is about 350.5695366115. The cubic root of 122899 is about 49.7182823511.

The spelling of 122899 in words is "one hundred twenty-two thousand, eight hundred ninety-nine".