128304063 has 6 divisors (see below), whose sum is σ = 185328104. Its totient is φ = 85536036.

The previous prime is 128304061. The next prime is 128304067. The reversal of 128304063 is 360403821.

It is a happy number.

It is not a de Polignac number, because 128304063 - 2¹ = 128304061 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 (128304061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7127995 + ... + 7128012.

Almost surely, 2^128304063 is an apocalyptic number.

128304063 is a deficient number, since it is larger than the sum of its proper divisors (57024041).

128304063 is a wasteful number, since it uses less digits than its factorization.

128304063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14256013 (or 14256010 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 128304063 is about 11327.1383411698. The cubic root of 128304063 is about 504.3671620696.

Adding to 128304063 its reverse (360403821), we get a palindrome (488707884).

The spelling of 128304063 in words is "one hundred twenty-eight million, three hundred four thousand, sixty-three".