122599 has 2 divisors, whose sum is σ = 122600.
Its totient is φ = 122598.
The previous prime is 122597. The next prime is 122609. The reversal of 122599 is 995221.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 122599 - 21 = 122597 is a prime.
Together with 122597, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122597) 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, 61299 + 61300.
It is an arithmetic number, because the mean of its divisors is an integer number (61300).
2122599 is an apocalyptic number.
122599 is a deficient number, since it is larger than the sum of its proper divisors (1).
122599 is an equidigital number, since it uses as much as digits as its factorization.
122599 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1620, while the sum is 28.
The square root of 122599 is about 350.1414000086.
The cubic root of 122599 is about 49.6777948029.
The spelling of 122599 in words is "one hundred twenty-two thousand, five hundred ninety-nine".