128257454 has 32 divisors (see below), whose sum is σ = 213857280. Its totient is φ = 57317472.

The previous prime is 128257439. The next prime is 128257457. The reversal of 128257454 is 454752821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128257457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125357 + ... + 126375.

It is an arithmetic number, because the mean of its divisors is an integer number (6683040).

Almost surely, 2^128257454 is an apocalyptic number.

128257454 is a deficient number, since it is larger than the sum of its proper divisors (85599826).

128257454 is a wasteful number, since it uses less digits than its factorization.

128257454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 89600, while the sum is 38.

The square root of 128257454 is about 11325.0807502640. The cubic root of 128257454 is about 504.3060808753.

The spelling of 128257454 in words is "one hundred twenty-eight million, two hundred fifty-seven thousand, four hundred fifty-four".