128648343 has 16 divisors (see below), whose sum is σ = 174774240. Its totient is φ = 84158976.

The previous prime is 128648341. The next prime is 128648363. The reversal of 128648343 is 343846821.

It is a happy number.

It is not a de Polignac number, because 128648343 - 2¹ = 128648341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128648341) 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, 34821 + ... + 38337.

It is an arithmetic number, because the mean of its divisors is an integer number (10923390).

Almost surely, 2^128648343 is an apocalyptic number.

128648343 is a deficient number, since it is larger than the sum of its proper divisors (46125897).

128648343 is a wasteful number, since it uses less digits than its factorization.

128648343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746.

The product of its digits is 110592, while the sum is 39.

The square root of 128648343 is about 11342.3252906977. The cubic root of 128648343 is about 504.8178842065.

The spelling of 128648343 in words is "one hundred twenty-eight million, six hundred forty-eight thousand, three hundred forty-three".