128230799 has 8 divisors (see below), whose sum is σ = 129783360. Its totient is φ = 126683136.

The previous prime is 128230769. The next prime is 128230811. The reversal of 128230799 is 997032821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128230799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128230769) 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, 89402 + ... + 90824.

It is an arithmetic number, because the mean of its divisors is an integer number (16222920).

Almost surely, 2^128230799 is an apocalyptic number.

128230799 is a deficient number, since it is larger than the sum of its proper divisors (1552561).

128230799 is an equidigital number, since it uses as much as digits as its factorization.

128230799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 128230799 is about 11323.9038763140. The cubic root of 128230799 is about 504.2711427892.

The spelling of 128230799 in words is "one hundred twenty-eight million, two hundred thirty thousand, seven hundred ninety-nine".