126816808 has 8 divisors (see below), whose sum is σ = 237781530. Its totient is φ = 63408400.

The previous prime is 126816803. The next prime is 126816829. The reversal of 126816808 is 808618621.

It can be written as a sum of positive squares in only one way, i.e., 86899684 + 39917124 = 9322^2 + 6318^2 .

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 (126816803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7926043 + ... + 7926058.

Almost surely, 2^126816808 is an apocalyptic number.

It is an amenable number.

126816808 is a deficient number, since it is larger than the sum of its proper divisors (110964722).

126816808 is a wasteful number, since it uses less digits than its factorization.

126816808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15852107 (or 15852103 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 126816808 is about 11261.2969057742. The cubic root of 126816808 is about 502.4107683771.

The spelling of 126816808 in words is "one hundred twenty-six million, eight hundred sixteen thousand, eight hundred eight".