10805189 has 4 divisors (see below), whose sum is σ = 10935456. Its totient is φ = 10674924.

The previous prime is 10805177. The next prime is 10805203. The reversal of 10805189 is 98150801.

It is a happy number.

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 10805189 - 2¹² = 10801093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10805089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65009 + ... + 65174.

It is an arithmetic number, because the mean of its divisors is an integer number (2733864).

Almost surely, 2^10805189 is an apocalyptic number.

It is an amenable number.

10805189 is a deficient number, since it is larger than the sum of its proper divisors (130267).

10805189 is an equidigital number, since it uses as much as digits as its factorization.

10805189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130266.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 10805189 is about 3287.1247314332. The cubic root of 10805189 is about 221.0772850641.

The spelling of 10805189 in words is "ten million, eight hundred five thousand, one hundred eighty-nine".