10128965 has 16 divisors (see below), whose sum is σ = 15154560. Its totient is φ = 6313920.

The previous prime is 10128961. The next prime is 10128973. The reversal of 10128965 is 56982101.

It is not a de Polignac number, because 10128965 - 2² = 10128961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128961) by changing a digit.

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, 12770 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (947160).

Almost surely, 2^10128965 is an apocalyptic number.

It is an amenable number.

10128965 is a deficient number, since it is larger than the sum of its proper divisors (5025595).

10128965 is a wasteful number, since it uses less digits than its factorization.

10128965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26332.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 10128965 is about 3182.6034939967. The cubic root of 10128965 is about 216.3656714634.

The spelling of 10128965 in words is "ten million, one hundred twenty-eight thousand, nine hundred sixty-five".