1608189 has 8 divisors (see below), whose sum is σ = 2339232. Its totient is φ = 974640.

The previous prime is 1608133. The next prime is 1608197. The reversal of 1608189 is 9818061.

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

It is not a de Polignac number, because 1608189 - 2¹² = 1604093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 48733 = 1608189 / (1 + 6 + 0 + 8 + 1 + 8 + 9).

1608189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608109) 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, 24334 + ... + 24399.

It is an arithmetic number, because the mean of its divisors is an integer number (292404).

2^1608189 is an apocalyptic number.

It is an amenable number.

1608189 is a deficient number, since it is larger than the sum of its proper divisors (731043).

1608189 is a wasteful number, since it uses less digits than its factorization.

1608189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48747.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1608189 is about 1268.1439192773. The cubic root of 1608189 is about 117.1599099137.

The spelling of 1608189 in words is "one million, six hundred eight thousand, one hundred eighty-nine".