128652323 has 4 divisors (see below), whose sum is σ = 133088640. Its totient is φ = 124216008.

The previous prime is 128652319. The next prime is 128652343. The reversal of 128652323 is 323256821.

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 128652323 - 2² = 128652319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128652323.

It is not an unprimeable number, because it can be changed into a prime (128652343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218115 + ... + 2218172.

It is an arithmetic number, because the mean of its divisors is an integer number (33272160).

Almost surely, 2^128652323 is an apocalyptic number.

128652323 is a deficient number, since it is larger than the sum of its proper divisors (4436317).

128652323 is an equidigital number, since it uses as much as digits as its factorization.

128652323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436316.

The product of its digits is 17280, while the sum is 32.

The square root of 128652323 is about 11342.5007383734. The cubic root of 128652323 is about 504.8230900113.

The spelling of 128652323 in words is "one hundred twenty-eight million, six hundred fifty-two thousand, three hundred twenty-three".