128147323 has 4 divisors (see below), whose sum is σ = 128248488. Its totient is φ = 128046160.

The previous prime is 128147321. The next prime is 128147363. The reversal of 128147323 is 323741821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323741821 = 13 ⋅24903217.

It is a cyclic number.

It is not a de Polignac number, because 128147323 - 2¹ = 128147321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128147321) 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, 48658 + ... + 51223.

It is an arithmetic number, because the mean of its divisors is an integer number (32062122).

Almost surely, 2^128147323 is an apocalyptic number.

128147323 is a deficient number, since it is larger than the sum of its proper divisors (101165).

128147323 is an equidigital number, since it uses as much as digits as its factorization.

128147323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101164.

The product of its digits is 8064, while the sum is 31.

The square root of 128147323 is about 11320.2174449080. The cubic root of 128147323 is about 504.1616951479.

The spelling of 128147323 in words is "one hundred twenty-eight million, one hundred forty-seven thousand, three hundred twenty-three".