126242306 has 16 divisors (see below), whose sum is σ = 203792760. Its totient is φ = 58433280.

The previous prime is 126242279. The next prime is 126242309. The reversal of 126242306 is 603242621.

It can be written as a sum of positive squares in 4 ways, for example, as 105165025 + 21077281 = 10255^2 + 4591^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126242309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28361 + ... + 32508.

Almost surely, 2^126242306 is an apocalyptic number.

126242306 is a deficient number, since it is larger than the sum of its proper divisors (77550454).

126242306 is a wasteful number, since it uses less digits than its factorization.

126242306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60949.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 126242306 is about 11235.7601433993. The cubic root of 126242306 is about 501.6509507236.

Adding to 126242306 its reverse (603242621), we get a palindrome (729484927).

The spelling of 126242306 in words is "one hundred twenty-six million, two hundred forty-two thousand, three hundred six".