128543254 has 64 divisors (see below), whose sum is σ = 240768000. Its totient is φ = 50295168.

The previous prime is 128543249. The next prime is 128543257. The reversal of 128543254 is 452345821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128543257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645847 + ... + 646045.

It is an arithmetic number, because the mean of its divisors is an integer number (3762000).

Almost surely, 2^128543254 is an apocalyptic number.

128543254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128543254 is a deficient number, since it is larger than the sum of its proper divisors (112224746).

128543254 is a wasteful number, since it uses less digits than its factorization.

128543254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 38400, while the sum is 34.

The square root of 128543254 is about 11337.6917403853. The cubic root of 128543254 is about 504.6803898630.

The spelling of 128543254 in words is "one hundred twenty-eight million, five hundred forty-three thousand, two hundred fifty-four".