128849127 has 32 divisors (see below), whose sum is σ = 199584000. Its totient is φ = 73117440.

The previous prime is 128849099. The next prime is 128849131. The reversal of 128849127 is 721948821.

It is not a de Polignac number, because 128849127 - 2¹⁶ = 128783591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128849527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54649 + ... + 56957.

It is an arithmetic number, because the mean of its divisors is an integer number (6237000).

Almost surely, 2^128849127 is an apocalyptic number.

128849127 is a deficient number, since it is larger than the sum of its proper divisors (70734873).

128849127 is a wasteful number, since it uses less digits than its factorization.

128849127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431.

The product of its digits is 64512, while the sum is 42.

The square root of 128849127 is about 11351.1729349878. The cubic root of 128849127 is about 505.0803740974.

The spelling of 128849127 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, one hundred twenty-seven".