122985 has 16 divisors (see below), whose sum is σ = 218880. Its totient is φ = 65520.

The previous prime is 122971. The next prime is 123001. The reversal of 122985 is 589221.

It is not a de Polignac number, because 122985 - 2⁵ = 122953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321 + ... + 590.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2¹²²⁹⁸⁵ is an apocalyptic number.

122985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122985 is a deficient number, since it is larger than the sum of its proper divisors (95895).

122985 is an equidigital number, since it uses as much as digits as its factorization.

122985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 919 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 122985 is about 350.6921727099. The cubic root of 122985 is about 49.7298766286.

The spelling of 122985 in words is "one hundred twenty-two thousand, nine hundred eighty-five".