126669338 has 4 divisors (see below), whose sum is σ = 190004010. Its totient is φ = 63334668.

The previous prime is 126669331. The next prime is 126669341. The reversal of 126669338 is 833966621.

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., 115627009 + 11042329 = 10753^2 + 3323^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126669331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31667333 + ... + 31667336.

Almost surely, 2^126669338 is an apocalyptic number.

126669338 is a deficient number, since it is larger than the sum of its proper divisors (63334672).

126669338 is an equidigital number, since it uses as much as digits as its factorization.

126669338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63334671.

The product of its digits is 279936, while the sum is 44.

The square root of 126669338 is about 11254.7473538947. The cubic root of 126669338 is about 502.2159486350.

The spelling of 126669338 in words is "one hundred twenty-six million, six hundred sixty-nine thousand, three hundred thirty-eight".