319138226 has 12 divisors (see below), whose sum is σ = 526182846. Its totient is φ = 145062720.

The previous prime is 319138223. The next prime is 319138241. The reversal of 319138226 is 622831913.

319138226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 294088201 + 25050025 = 17149^2 + 5005^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319138223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659135 + ... + 659618.

Almost surely, 2^319138226 is an apocalyptic number.

319138226 is a deficient number, since it is larger than the sum of its proper divisors (207044620).

319138226 is a wasteful number, since it uses less digits than its factorization.

319138226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318777 (or 1318766 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 319138226 is about 17864.4402655107. The cubic root of 319138226 is about 683.3758213254.

The spelling of 319138226 in words is "three hundred nineteen million, one hundred thirty-eight thousand, two hundred twenty-six".