10505345 has 8 divisors (see below), whose sum is σ = 12624360. Its totient is φ = 8392320.

The previous prime is 10505317. The next prime is 10505351. The reversal of 10505345 is 54350501.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 9591409 = 956^2 + 3097^2 .

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

It is not a de Polignac number, because 10505345 - 2⁶ = 10505281 is a prime.

It is a super-2 number, since 2×10505345² = 220724547138050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10505345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1578045).

Almost surely, 2^10505345 is an apocalyptic number.

It is an amenable number.

10505345 is a deficient number, since it is larger than the sum of its proper divisors (2119015).

10505345 is a wasteful number, since it uses less digits than its factorization.

10505345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 10505345 is about 3241.1949956767. The cubic root of 10505345 is about 219.0131070879.

Adding to 10505345 its reverse (54350501), we get a palindrome (64855846).

The spelling of 10505345 in words is "ten million, five hundred five thousand, three hundred forty-five".