243226226 has 4 divisors (see below), whose sum is σ = 364839342. Its totient is φ = 121613112.

The previous prime is 243226177. The next prime is 243226253. The reversal of 243226226 is 622622342.

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., 243204025 + 22201 = 15595^2 + 149^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60806555 + ... + 60806558.

Almost surely, 2^243226226 is an apocalyptic number.

243226226 is a deficient number, since it is larger than the sum of its proper divisors (121613116).

243226226 is a wasteful number, since it uses less digits than its factorization.

243226226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121613115.

The product of its digits is 13824, while the sum is 29.

The square root of 243226226 is about 15595.7117824099. The cubic root of 243226226 is about 624.2187366644.

Adding to 243226226 its reverse (622622342), we get a palindrome (865848568).

The spelling of 243226226 in words is "two hundred forty-three million, two hundred twenty-six thousand, two hundred twenty-six".