126439066 has 16 divisors (see below), whose sum is σ = 207048744. Its totient is φ = 57556224.

The previous prime is 126439063. The next prime is 126439067. The reversal of 126439066 is 660934621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44156025 + 82283041 = 6645^2 + 9071^2 .

It is not an unprimeable number, because it can be changed into a prime (126439063) 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, 31411 + ... + 35206.

Almost surely, 2^126439066 is an apocalyptic number.

126439066 is a deficient number, since it is larger than the sum of its proper divisors (80609678).

126439066 is a wasteful number, since it uses less digits than its factorization.

126439066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66705.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 126439066 is about 11244.5127062047. The cubic root of 126439066 is about 501.9114381635.

The spelling of 126439066 in words is "one hundred twenty-six million, four hundred thirty-nine thousand, sixty-six".