126446636 has 6 divisors (see below), whose sum is σ = 221281620. Its totient is φ = 63223316.

The previous prime is 126446633. The next prime is 126446651. The reversal of 126446636 is 636644621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126446636.

It is not an unprimeable number, because it can be changed into a prime (126446633) 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, 15805826 + ... + 15805833.

It is an arithmetic number, because the mean of its divisors is an integer number (36880270).

Almost surely, 2^126446636 is an apocalyptic number.

It is an amenable number.

126446636 is a deficient number, since it is larger than the sum of its proper divisors (94834984).

126446636 is a wasteful number, since it uses less digits than its factorization.

126446636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31611663 (or 31611661 counting only the distinct ones).

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

The square root of 126446636 is about 11244.8493097951. The cubic root of 126446636 is about 501.9214545661.

The spelling of 126446636 in words is "one hundred twenty-six million, four hundred forty-six thousand, six hundred thirty-six".