10345665 has 16 divisors (see below), whose sum is σ = 18058176. Its totient is φ = 5016000.

The previous prime is 10345651. The next prime is 10345667. The reversal of 10345665 is 56654301.

It is not a de Polignac number, because 10345665 - 2⁴ = 10345649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10345667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31186 + ... + 31515.

It is an arithmetic number, because the mean of its divisors is an integer number (1128636).

Almost surely, 2^10345665 is an apocalyptic number.

10345665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10345665 is a deficient number, since it is larger than the sum of its proper divisors (7712511).

10345665 is a wasteful number, since it uses less digits than its factorization.

10345665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62720.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 10345665 is about 3216.4677831435. The cubic root of 10345665 is about 217.8977791386.

Adding to 10345665 its reverse (56654301), we get a palindrome (66999966).

The spelling of 10345665 in words is "ten million, three hundred forty-five thousand, six hundred sixty-five".