128285763 has 8 divisors (see below), whose sum is σ = 176946000. Its totient is φ = 82574688.

The previous prime is 128285753. The next prime is 128285767. The reversal of 128285763 is 367582821.

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

It is not a de Polignac number, because 128285763 - 2⁶ = 128285699 is a prime.

It is a super-3 number, since 3×128285763³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (128285767) 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, 737188 + ... + 737361.

It is an arithmetic number, because the mean of its divisors is an integer number (22118250).

Almost surely, 2^128285763 is an apocalyptic number.

128285763 is a deficient number, since it is larger than the sum of its proper divisors (48660237).

128285763 is a wasteful number, since it uses less digits than its factorization.

128285763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474581.

The product of its digits is 161280, while the sum is 42.

The square root of 128285763 is about 11326.3305178685. The cubic root of 128285763 is about 504.3431816445.

The spelling of 128285763 in words is "one hundred twenty-eight million, two hundred eighty-five thousand, seven hundred sixty-three".