128302345 has 8 divisors (see below), whose sum is σ = 162066240. Its totient is φ = 97239600.

The previous prime is 128302333. The next prime is 128302379. The reversal of 128302345 is 543203821.

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

It is not a de Polignac number, because 128302345 - 2¹⁷ = 128171273 is a prime.

It is a super-2 number, since 2×128302345² = 32922983464998050, which contains 22 as substring.

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, 675181 + ... + 675370.

It is an arithmetic number, because the mean of its divisors is an integer number (20258280).

Almost surely, 2^128302345 is an apocalyptic number.

It is an amenable number.

128302345 is a deficient number, since it is larger than the sum of its proper divisors (33763895).

128302345 is a wasteful number, since it uses less digits than its factorization.

128302345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350575.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 128302345 is about 11327.0625053453. The cubic root of 128302345 is about 504.3649108895.

The spelling of 128302345 in words is "one hundred twenty-eight million, three hundred two thousand, three hundred forty-five".