231042226 has 16 divisors (see below), whose sum is σ = 352114200. Its totient is φ = 113678208.

The previous prime is 231042221. The next prime is 231042233. The reversal of 231042226 is 622240132.

It can be written as a sum of positive squares in 4 ways, for example, as 201611601 + 29430625 = 14199^2 + 5425^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231042197 and 231042206.

It is not an unprimeable number, because it can be changed into a prime (231042221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72760 + ... + 75868.

Almost surely, 2^231042226 is an apocalyptic number.

231042226 is a deficient number, since it is larger than the sum of its proper divisors (121071974).

231042226 is a wasteful number, since it uses less digits than its factorization.

231042226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 231042226 is about 15200.0732235078. The cubic root of 231042226 is about 613.6166284087.

Adding to 231042226 its reverse (622240132), we get a palindrome (853282358).

The spelling of 231042226 in words is "two hundred thirty-one million, forty-two thousand, two hundred twenty-six".