128466323 has 2 divisors, whose sum is σ = 128466324. Its totient is φ = 128466322.

The previous prime is 128466319. The next prime is 128466343. The reversal of 128466323 is 323664821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128466323 - 2² = 128466319 is a prime.

It is a super-2 number, since 2×128466323² = 33007192290280658, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (128466343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64233161 + 64233162.

It is an arithmetic number, because the mean of its divisors is an integer number (64233162).

Almost surely, 2^128466323 is an apocalyptic number.

128466323 is a deficient number, since it is larger than the sum of its proper divisors (1).

128466323 is an equidigital number, since it uses as much as digits as its factorization.

128466323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 128466323 is about 11334.2985226259. The cubic root of 128466323 is about 504.5796888307.

The spelling of 128466323 in words is "one hundred twenty-eight million, four hundred sixty-six thousand, three hundred twenty-three".