122806985 has 24 divisors (see below), whose sum is σ = 171974016. Its totient is φ = 83942880.

The previous prime is 122806961. The next prime is 122806987. The reversal of 122806985 is 589608221.

It is not a de Polignac number, because 122806985 - 2¹⁸ = 122544841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122806987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105014 + ... + 106176.

It is an arithmetic number, because the mean of its divisors is an integer number (7165584).

Almost surely, 2^122806985 is an apocalyptic number.

It is an amenable number.

122806985 is a deficient number, since it is larger than the sum of its proper divisors (49167031).

122806985 is a wasteful number, since it uses less digits than its factorization.

122806985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 122806985 is about 11081.8313017299. The cubic root of 122806985 is about 497.0587115722.

The spelling of 122806985 in words is "one hundred twenty-two million, eight hundred six thousand, nine hundred eighty-five".