122249305 has 4 divisors (see below), whose sum is σ = 146699172. Its totient is φ = 97799440.

The previous prime is 122249273. The next prime is 122249317. The reversal of 122249305 is 503942221.

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 30702681 + 91546624 = 5541^2 + 9568^2 .

It is not a de Polignac number, because 122249305 - 2⁵ = 122249273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12224926 + ... + 12224935.

It is an arithmetic number, because the mean of its divisors is an integer number (36674793).

Almost surely, 2^122249305 is an apocalyptic number.

It is an amenable number.

122249305 is a deficient number, since it is larger than the sum of its proper divisors (24449867).

122249305 is an equidigital number, since it uses as much as digits as its factorization.

122249305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24449866.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 122249305 is about 11056.6407647169. The cubic root of 122249305 is about 496.3051703896.

The spelling of 122249305 in words is "one hundred twenty-two million, two hundred forty-nine thousand, three hundred five".