128553223 has 2 divisors, whose sum is σ = 128553224. Its totient is φ = 128553222.

The previous prime is 128553211. The next prime is 128553241. The reversal of 128553223 is 322355821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128553223 is a prime.

It is a super-2 number, since 2×128553223² = 33051862287375458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128553203) 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 as a sum of consecutive naturals, namely, 64276611 + 64276612.

It is an arithmetic number, because the mean of its divisors is an integer number (64276612).

Almost surely, 2^128553223 is an apocalyptic number.

128553223 is a deficient number, since it is larger than the sum of its proper divisors (1).

128553223 is an equidigital number, since it uses as much as digits as its factorization.

128553223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 128553223 is about 11338.1313716150. The cubic root of 128553223 is about 504.6934361298.

The spelling of 128553223 in words is "one hundred twenty-eight million, five hundred fifty-three thousand, two hundred twenty-three".