245899 has 2 divisors, whose sum is σ = 245900.
Its totient is φ = 245898.
The previous prime is 245897. The next prime is 245909. The reversal of 245899 is 998542.
It can be divided in two parts, 2458 and 99, that multiplied together give a palindrome (243342).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 245899 - 21 = 245897 is a prime.
Together with 245897, it forms a pair of twin primes.
It is a Chen prime.
It is a plaindrome in base 10.
It is not a weakly prime, because it can be changed into another prime (245897) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122949 + 122950.
It is an arithmetic number, because the mean of its divisors is an integer number (122950).
2245899 is an apocalyptic number.
245899 is a deficient number, since it is larger than the sum of its proper divisors (1).
245899 is an equidigital number, since it uses as much as digits as its factorization.
245899 is an evil number, because the sum of its binary digits is even.
The product of its digits is 25920, while the sum is 37.
The square root of 245899 is about 495.8820424254.
The cubic root of 245899 is about 62.6496892041.
The spelling of 245899 in words is "two hundred forty-five thousand, eight hundred ninety-nine".