122698985 has 4 divisors (see below), whose sum is σ = 147238788. Its totient is φ = 98159184.

The previous prime is 122698949. The next prime is 122698987. The reversal of 122698985 is 589896221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32752729 + 89946256 = 5723^2 + 9484^2 .

It is a cyclic number.

It is not a de Polignac number, because 122698985 - 2⁶ = 122698921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122698987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12269894 + ... + 12269903.

It is an arithmetic number, because the mean of its divisors is an integer number (36809697).

Almost surely, 2^122698985 is an apocalyptic number.

It is an amenable number.

122698985 is a deficient number, since it is larger than the sum of its proper divisors (24539803).

122698985 is an equidigital number, since it uses as much as digits as its factorization.

122698985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24539802.

The product of its digits is 622080, while the sum is 50.

The square root of 122698985 is about 11076.9573891028. The cubic root of 122698985 is about 496.9129595882.

The spelling of 122698985 in words is "one hundred twenty-two million, six hundred ninety-eight thousand, nine hundred eighty-five".