126872168 has 8 divisors (see below), whose sum is σ = 237885330. Its totient is φ = 63436080.

The previous prime is 126872167. The next prime is 126872201. The reversal of 126872168 is 861278621.

It can be written as a sum of positive squares in only one way, i.e., 100841764 + 26030404 = 10042^2 + 5102^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (126872167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7929503 + ... + 7929518.

Almost surely, 2^126872168 is an apocalyptic number.

It is an amenable number.

126872168 is a deficient number, since it is larger than the sum of its proper divisors (111013162).

126872168 is a wasteful number, since it uses less digits than its factorization.

126872168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15859027 (or 15859023 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 126872168 is about 11263.7546138044. The cubic root of 126872168 is about 502.4838644027.

The spelling of 126872168 in words is "one hundred twenty-six million, eight hundred seventy-two thousand, one hundred sixty-eight".