126286642 has 36 divisors (see below), whose sum is σ = 208998846. Its totient is φ = 57185280.

The previous prime is 126286631. The next prime is 126286649. The reversal of 126286642 is 246682621.

It can be written as a sum of positive squares in 9 ways, for example, as 26306641 + 99980001 = 5129^2 + 9999^2 .

It is not an unprimeable number, because it can be changed into a prime (126286649) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1729918 + ... + 1729990.

Almost surely, 2^126286642 is an apocalyptic number.

126286642 is a deficient number, since it is larger than the sum of its proper divisors (82712204).

126286642 is an equidigital number, since it uses as much as digits as its factorization.

126286642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 133 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 126286642 is about 11237.7329564285. The cubic root of 126286642 is about 501.7096700601.

The spelling of 126286642 in words is "one hundred twenty-six million, two hundred eighty-six thousand, six hundred forty-two".