126984128 has 42 divisors (see below), whose sum is σ = 255839976. Its totient is φ = 62532864.

The previous prime is 126984097. The next prime is 126984133. The reversal of 126984128 is 821489621.

It is a super-2 number, since 2×126984128² = 32249937527840768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 760301 + ... + 760467.

It is an arithmetic number, because the mean of its divisors is an integer number (6091428).

Almost surely, 2^126984128 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 126984128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127919988).

126984128 is an abundant number, since it is smaller than the sum of its proper divisors (128855848).

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

126984128 is an equidigital number, since it uses as much as digits as its factorization.

126984128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 278 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 126984128 is about 11268.7234414551. The cubic root of 126984128 is about 502.6316287598.

The spelling of 126984128 in words is "one hundred twenty-six million, nine hundred eighty-four thousand, one hundred twenty-eight".