126667788 has 48 divisors (see below), whose sum is σ = 323070720. Its totient is φ = 38389824.

The previous prime is 126667787. The next prime is 126667817. The reversal of 126667788 is 887766621.

It is a plaindrome in base 10.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 126667788.

It is not an unprimeable number, because it can be changed into a prime (126667787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4393 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (6730640).

Almost surely, 2^126667788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126667788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161535360).

126667788 is an abundant number, since it is smaller than the sum of its proper divisors (196402932).

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

126667788 is a wasteful number, since it uses less digits than its factorization.

126667788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206 (or 12204 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 126667788 is about 11254.6784938531. The cubic root of 126667788 is about 502.2139001574.

The spelling of 126667788 in words is "one hundred twenty-six million, six hundred sixty-seven thousand, seven hundred eighty-eight".