126128206 has 4 divisors (see below), whose sum is σ = 189192312. Its totient is φ = 63064102.

The previous prime is 126128203. The next prime is 126128207. The reversal of 126128206 is 602821621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126128201) 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 as a sum of consecutive naturals, namely, 31532050 + ... + 31532053.

It is an arithmetic number, because the mean of its divisors is an integer number (47298078).

Almost surely, 2^126128206 is an apocalyptic number.

126128206 is a deficient number, since it is larger than the sum of its proper divisors (63064106).

126128206 is an equidigital number, since it uses as much as digits as its factorization.

126128206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63064105.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 126128206 is about 11230.6814575074. The cubic root of 126128206 is about 501.4997715394.

Adding to 126128206 its reverse (602821621), we get a palindrome (728949827).

The spelling of 126128206 in words is "one hundred twenty-six million, one hundred twenty-eight thousand, two hundred six".