609161 has 8 divisors (see below), whose sum is σ = 737280. Its totient is φ = 491328.

The previous prime is 609149. The next prime is 609163. The reversal of 609161 is 161906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 609161.

It is not an unprimeable number, because it can be changed into a prime (609163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (92160).

2⁶⁰⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

609161 is a deficient number, since it is larger than the sum of its proper divisors (128119).

609161 is a wasteful number, since it uses less digits than its factorization.

609161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 609161 is about 780.4876680640. The cubic root of 609161 is about 84.7703605476.

The spelling of 609161 in words is "six hundred nine thousand, one hundred sixty-one".