581361226 has 4 divisors (see below), whose sum is σ = 872041842. Its totient is φ = 290680612.

The previous prime is 581361217. The next prime is 581361239. The reversal of 581361226 is 622163185.

581361226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 371140225 + 210221001 = 19265^2 + 14499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 581361191 and 581361200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145340305 + ... + 145340308.

Almost surely, 2^581361226 is an apocalyptic number.

581361226 is a deficient number, since it is larger than the sum of its proper divisors (290680616).

581361226 is a wasteful number, since it uses less digits than its factorization.

581361226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290680615.

The product of its digits is 17280, while the sum is 34.

The square root of 581361226 is about 24111.4335119254. The cubic root of 581361226 is about 834.6069963827.

The spelling of 581361226 in words is "five hundred eighty-one million, three hundred sixty-one thousand, two hundred twenty-six".