128235288146 has 8 divisors (see below), whose sum is σ = 219831922560. Its totient is φ = 54957980628.

The previous prime is 128235288143. The next prime is 128235288151. The reversal of 128235288146 is 641882532821.

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

It is a junction number, because it is equal to n+sod(n) for n = 128235288094 and 128235288103.

It is not an unprimeable number, because it can be changed into a prime (128235288143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4579831706 + ... + 4579831733.

It is an arithmetic number, because the mean of its divisors is an integer number (27478990320).

Almost surely, 2^128235288146 is an apocalyptic number.

128235288146 is a deficient number, since it is larger than the sum of its proper divisors (91596634414).

128235288146 is an equidigital number, since it uses as much as digits as its factorization.

128235288146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159663448.

The product of its digits is 1474560, while the sum is 50.

The spelling of 128235288146 in words is "one hundred twenty-eight billion, two hundred thirty-five million, two hundred eighty-eight thousand, one hundred forty-six".