128459234 has 16 divisors (see below), whose sum is σ = 197600928. Its totient is φ = 62612352.

The previous prime is 128459207. The next prime is 128459237. The reversal of 128459234 is 432954821.

It is a super-3 number, since 3×128459234³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128459237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8057 + ... + 17939.

It is an arithmetic number, because the mean of its divisors is an integer number (12350058).

Almost surely, 2^128459234 is an apocalyptic number.

128459234 is a deficient number, since it is larger than the sum of its proper divisors (69141694).

128459234 is an equidigital number, since it uses as much as digits as its factorization.

128459234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049.

The product of its digits is 69120, while the sum is 38.

The square root of 128459234 is about 11333.9857949443. The cubic root of 128459234 is about 504.5704074586.

The spelling of 128459234 in words is "one hundred twenty-eight million, four hundred fifty-nine thousand, two hundred thirty-four".