10505609 has 8 divisors (see below), whose sum is σ = 11163168. Its totient is φ = 9852480.

The previous prime is 10505597. The next prime is 10505617. The reversal of 10505609 is 90650501.

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

It is a cyclic number.

It is not a de Polignac number, because 10505609 - 2⁸ = 10505353 is a prime.

It is a super-2 number, since 2×10505609² = 220735640921762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10505639) 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, 4694 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (1395396).

Almost surely, 2^10505609 is an apocalyptic number.

It is an amenable number.

10505609 is a deficient number, since it is larger than the sum of its proper divisors (657559).

10505609 is a wasteful number, since it uses less digits than its factorization.

10505609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 10505609 is about 3241.2357211409. The cubic root of 10505609 is about 219.0149416770.

The spelling of 10505609 in words is "ten million, five hundred five thousand, six hundred nine".