126434666 has 4 divisors (see below), whose sum is σ = 189652002. Its totient is φ = 63217332.

The previous prime is 126434617. The next prime is 126434669. The reversal of 126434666 is 666434621.

It is a happy number.

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., 115111441 + 11323225 = 10729^2 + 3365^2 .

It is not an unprimeable number, because it can be changed into a prime (126434669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31608665 + ... + 31608668.

Almost surely, 2^126434666 is an apocalyptic number.

126434666 is a deficient number, since it is larger than the sum of its proper divisors (63217336).

126434666 is an equidigital number, since it uses as much as digits as its factorization.

126434666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63217335.

The product of its digits is 124416, while the sum is 38.

The square root of 126434666 is about 11244.3170535164. The cubic root of 126434666 is about 501.9056160284.

The spelling of 126434666 in words is "one hundred twenty-six million, four hundred thirty-four thousand, six hundred sixty-six".