128232417 has 8 divisors (see below), whose sum is σ = 175597696. Its totient is φ = 83177712.

The previous prime is 128232409. The next prime is 128232421. The reversal of 128232417 is 714232821.

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

It is not a de Polignac number, because 128232417 - 2³ = 128232409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128232437) 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, 577513 + ... + 577734.

It is an arithmetic number, because the mean of its divisors is an integer number (21949712).

Almost surely, 2^128232417 is an apocalyptic number.

It is an amenable number.

128232417 is a deficient number, since it is larger than the sum of its proper divisors (47365279).

128232417 is a wasteful number, since it uses less digits than its factorization.

128232417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155287.

The product of its digits is 5376, while the sum is 30.

The square root of 128232417 is about 11323.9753178820. The cubic root of 128232417 is about 504.2732637234.

The spelling of 128232417 in words is "one hundred twenty-eight million, two hundred thirty-two thousand, four hundred seventeen".