128648193 has 8 divisors (see below), whose sum is σ = 171584928. Its totient is φ = 85738464.

The previous prime is 128648173. The next prime is 128648213. The reversal of 128648193 is 391846821.

It is an interprime number because it is at equal distance from previous prime (128648173) and next prime (128648213).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128648193 - 2⁵ = 128648161 is a prime.

It is a super-3 number, since 3×128648193³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128648123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11146 + ... + 19532.

It is an arithmetic number, because the mean of its divisors is an integer number (21448116).

Almost surely, 2^128648193 is an apocalyptic number.

It is an amenable number.

128648193 is a deficient number, since it is larger than the sum of its proper divisors (42936735).

128648193 is an equidigital number, since it uses as much as digits as its factorization.

128648193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13503.

The product of its digits is 82944, while the sum is 42.

The square root of 128648193 is about 11342.3186782950. The cubic root of 128648193 is about 504.8176880058.

The spelling of 128648193 in words is "one hundred twenty-eight million, six hundred forty-eight thousand, one hundred ninety-three".