10128785 has 16 divisors (see below), whose sum is σ = 12690432. Its totient is φ = 7752000.

The previous prime is 10128773. The next prime is 10128793. The reversal of 10128785 is 58782101.

It is a happy number.

It is not a de Polignac number, because 10128785 - 2⁶ = 10128721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15332 + ... + 15978.

It is an arithmetic number, because the mean of its divisors is an integer number (793152).

Almost surely, 2^10128785 is an apocalyptic number.

It is an amenable number.

10128785 is a deficient number, since it is larger than the sum of its proper divisors (2561647).

10128785 is a wasteful number, since it uses less digits than its factorization.

10128785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 10128785 is about 3182.5752151363. The cubic root of 10128785 is about 216.3643897907.

The spelling of 10128785 in words is "ten million, one hundred twenty-eight thousand, seven hundred eighty-five".