126939168 has 36 divisors (see below), whose sum is σ = 360984078. Its totient is φ = 42312960.

The previous prime is 126939161. The next prime is 126939179. The reversal of 126939168 is 861939621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106254864 + 20684304 = 10308^2 + 4548^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×126939168² = 32227104745064448, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (126939161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220093 + ... + 220668.

Almost surely, 2^126939168 is an apocalyptic number.

126939168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126939168 is an abundant number, since it is smaller than the sum of its proper divisors (234044910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126939168 is a wasteful number, since it uses less digits than its factorization.

126939168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440777 (or 440766 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 126939168 is about 11266.7283627502. The cubic root of 126939168 is about 502.5723011730.

The spelling of 126939168 in words is "one hundred twenty-six million, nine hundred thirty-nine thousand, one hundred sixty-eight".