128048863 has 4 divisors (see below), whose sum is σ = 131172048. Its totient is φ = 124925680.

The previous prime is 128048861. The next prime is 128048887. The reversal of 128048863 is 368840821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128048863 - 2¹ = 128048861 is a prime.

It is a super-2 number, since 2×128048863² = 32793022631185538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128048861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561531 + ... + 1561612.

It is an arithmetic number, because the mean of its divisors is an integer number (32793012).

Almost surely, 2^128048863 is an apocalyptic number.

128048863 is a deficient number, since it is larger than the sum of its proper divisors (3123185).

128048863 is an equidigital number, since it uses as much as digits as its factorization.

128048863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123184.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 128048863 is about 11315.8677528504. The cubic root of 128048863 is about 504.0325404685.

The spelling of 128048863 in words is "one hundred twenty-eight million, forty-eight thousand, eight hundred sixty-three".