128423548 has 12 divisors (see below), whose sum is σ = 245172312. Its totient is φ = 58374320.

The previous prime is 128423497. The next prime is 128423567. The reversal of 128423548 is 845324821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459315 + ... + 1459402.

It is an arithmetic number, because the mean of its divisors is an integer number (20431026).

Almost surely, 2^128423548 is an apocalyptic number.

It is an amenable number.

128423548 is a deficient number, since it is larger than the sum of its proper divisors (116748764).

128423548 is a wasteful number, since it uses less digits than its factorization.

128423548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918732 (or 2918730 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 128423548 is about 11332.4113938738. The cubic root of 128423548 is about 504.5236798792.

The spelling of 128423548 in words is "one hundred twenty-eight million, four hundred twenty-three thousand, five hundred forty-eight".