122505 has 8 divisors (see below), whose sum is σ = 196032. Its totient is φ = 65328.

The previous prime is 122503. The next prime is 122509. The reversal of 122505 is 505221.

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

It is not a de Polignac number, because 122505 - 2¹ = 122503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 8167 = 122505 / (1 + 2 + 2 + 5 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (122501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4069 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (24504).

2¹²²⁵⁰⁵ is an apocalyptic number.

122505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122505 is a deficient number, since it is larger than the sum of its proper divisors (73527).

122505 is an equidigital number, since it uses as much as digits as its factorization.

122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 122505 is about 350.0071427843. The cubic root of 122505 is about 49.6650951162.

Adding to 122505 its reverse (505221), we get a palindrome (627726).

The spelling of 122505 in words is "one hundred twenty-two thousand, five hundred five".