10645109 has 4 divisors (see below), whose sum is σ = 10744704. Its totient is φ = 10545516.

The previous prime is 10645069. The next prime is 10645127. The reversal of 10645109 is 90154601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10645109 - 2⁸ = 10644853 is a prime.

It is a super-2 number, since 2×10645109² = 226636691243762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645169) 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 3 ways as a sum of consecutive naturals, for example, 49637 + ... + 49850.

It is an arithmetic number, because the mean of its divisors is an integer number (2686176).

Almost surely, 2^10645109 is an apocalyptic number.

It is an amenable number.

10645109 is a deficient number, since it is larger than the sum of its proper divisors (99595).

10645109 is an equidigital number, since it uses as much as digits as its factorization.

10645109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99594.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 10645109 is about 3262.6843242950. The cubic root of 10645109 is about 219.9800877295.

The spelling of 10645109 in words is "ten million, six hundred forty-five thousand, one hundred nine".