609105 has 16 divisors (see below), whose sum is σ = 1113984. Its totient is φ = 278400.

The previous prime is 609101. The next prime is 609107. The reversal of 609105 is 501906.

It is not a de Polignac number, because 609105 - 2² = 609101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (609101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796 + ... + 3005.

It is an arithmetic number, because the mean of its divisors is an integer number (69624).

2⁶⁰⁹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

609105 is a deficient number, since it is larger than the sum of its proper divisors (504879).

609105 is a wasteful number, since it uses less digits than its factorization.

609105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 609105 is about 780.4517922332. The cubic root of 609105 is about 84.7677628295.

The spelling of 609105 in words is "six hundred nine thousand, one hundred five".