128415235 has 8 divisors (see below), whose sum is σ = 165952080. Its totient is φ = 94829664.

The previous prime is 128415223. The next prime is 128415241. The reversal of 128415235 is 532514821.

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

It is a cyclic number.

It is not a de Polignac number, because 128415235 - 2⁷ = 128415107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128415197 and 128415206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987745 + ... + 987874.

It is an arithmetic number, because the mean of its divisors is an integer number (20744010).

Almost surely, 2^128415235 is an apocalyptic number.

128415235 is a deficient number, since it is larger than the sum of its proper divisors (37536845).

128415235 is a wasteful number, since it uses less digits than its factorization.

128415235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975637.

The product of its digits is 9600, while the sum is 31.

The square root of 128415235 is about 11332.0446081014. The cubic root of 128415235 is about 504.5127935168.

The spelling of 128415235 in words is "one hundred twenty-eight million, four hundred fifteen thousand, two hundred thirty-five".