122783266 has 8 divisors (see below), whose sum is σ = 184341420. Its totient is φ = 61336128.

The previous prime is 122783257. The next prime is 122783267. The reversal of 122783266 is 662387221.

It can be written as a sum of positive squares in 2 ways, for example, as 122567041 + 216225 = 11071^2 + 465^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122783267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24931 + ... + 29446.

Almost surely, 2^122783266 is an apocalyptic number.

122783266 is a deficient number, since it is larger than the sum of its proper divisors (61558154).

122783266 is a wasteful number, since it uses less digits than its factorization.

122783266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55508.

The product of its digits is 48384, while the sum is 37.

The square root of 122783266 is about 11080.7610749443. The cubic root of 122783266 is about 497.0267087925.

The spelling of 122783266 in words is "one hundred twenty-two million, seven hundred eighty-three thousand, two hundred sixty-six".