105165089 has 4 divisors (see below), whose sum is σ = 105186180. Its totient is φ = 105144000.

The previous prime is 105165079. The next prime is 105165103. The reversal of 105165089 is 980561501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1288225 + 103876864 = 1135^2 + 10192^2 .

It is a cyclic number.

It is not a de Polignac number, because 105165089 - 2²⁰ = 104116513 is a prime.

It is a super-2 number, since 2×105165089² = 22119391888755842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105165059) 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, 1589 + ... + 14589.

It is an arithmetic number, because the mean of its divisors is an integer number (26296545).

Almost surely, 2^105165089 is an apocalyptic number.

It is an amenable number.

105165089 is a deficient number, since it is larger than the sum of its proper divisors (21091).

105165089 is an equidigital number, since it uses as much as digits as its factorization.

105165089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21090.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 105165089 is about 10255.0031204286. The cubic root of 105165089 is about 472.0165191600.

The spelling of 105165089 in words is "one hundred five million, one hundred sixty-five thousand, eighty-nine".