126687722 has 16 divisors (see below), whose sum is σ = 217416192. Its totient is φ = 54235440.

The previous prime is 126687721. The next prime is 126687733. The reversal of 126687722 is 227786621.

It is a self number, because there is not a number n which added to its sum of digits gives 126687722.

It is not an unprimeable number, because it can be changed into a prime (126687721) 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, 9863 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (13588512).

Almost surely, 2^126687722 is an apocalyptic number.

126687722 is a deficient number, since it is larger than the sum of its proper divisors (90728470).

126687722 is a wasteful number, since it uses less digits than its factorization.

126687722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9893.

The product of its digits is 112896, while the sum is 41.

The square root of 126687722 is about 11255.5640462840. The cubic root of 126687722 is about 502.2402436262.

It can be divided in two parts, 1266 and 87722, that added together give a palindrome (88988).

The spelling of 126687722 in words is "one hundred twenty-six million, six hundred eighty-seven thousand, seven hundred twenty-two".