205243226 has 4 divisors (see below), whose sum is σ = 307864842. Its totient is φ = 102621612.

The previous prime is 205243169. The next prime is 205243273. The reversal of 205243226 is 622342502.

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., 162537001 + 42706225 = 12749^2 + 6535^2 .

It is a junction number, because it is equal to n+sod(n) for n = 205243195 and 205243204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51310805 + ... + 51310808.

Almost surely, 2^205243226 is an apocalyptic number.

205243226 is a deficient number, since it is larger than the sum of its proper divisors (102621616).

205243226 is a wasteful number, since it uses less digits than its factorization.

205243226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102621615.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 205243226 is about 14326.3123657137. The cubic root of 205243226 is about 589.8699569754.

Adding to 205243226 its reverse (622342502), we get a palindrome (827585728).

The spelling of 205243226 in words is "two hundred five million, two hundred forty-three thousand, two hundred twenty-six".