609111 has 6 divisors (see below), whose sum is σ = 879840. Its totient is φ = 406068.

The previous prime is 609107. The next prime is 609113. The reversal of 609111 is 111906.

It is not a de Polignac number, because 609111 - 2² = 609107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33831 + ... + 33848.

It is an arithmetic number, because the mean of its divisors is an integer number (146640).

2⁶⁰⁹¹¹¹ is an apocalyptic number.

609111 is a deficient number, since it is larger than the sum of its proper divisors (270729).

609111 is a wasteful number, since it uses less digits than its factorization.

609111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67685 (or 67682 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 609111 is about 780.4556361511. The cubic root of 609111 is about 84.7680411640.

The spelling of 609111 in words is "six hundred nine thousand, one hundred eleven".