127428128 has 12 divisors (see below), whose sum is σ = 250874190. Its totient is φ = 63714048.

The previous prime is 127428121. The next prime is 127428137. The reversal of 127428128 is 821824721.

It can be written as a sum of positive squares in only one way, i.e., 118113424 + 9314704 = 10868^2 + 3052^2 .

It is not an unprimeable number, because it can be changed into a prime (127428121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1991033 + ... + 1991096.

Almost surely, 2^127428128 is an apocalyptic number.

It is an amenable number.

127428128 is a deficient number, since it is larger than the sum of its proper divisors (123446062).

127428128 is an equidigital number, since it uses as much as digits as its factorization.

127428128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982139 (or 3982131 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 127428128 is about 11288.4067963553. The cubic root of 127428128 is about 503.2167644717.

The spelling of 127428128 in words is "one hundred twenty-seven million, four hundred twenty-eight thousand, one hundred twenty-eight".