1609159 has 4 divisors (see below), whose sum is σ = 1611720. Its totient is φ = 1606600.

The previous prime is 1609147. The next prime is 1609163. The reversal of 1609159 is 9519061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9519061 = 661 ⋅14401.

It is a cyclic number.

It is not a de Polignac number, because 1609159 - 2¹³ = 1600967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1609159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609109) 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 3 ways as a sum of consecutive naturals, for example, 384 + ... + 1834.

It is an arithmetic number, because the mean of its divisors is an integer number (402930).

2^1609159 is an apocalyptic number.

1609159 is a deficient number, since it is larger than the sum of its proper divisors (2561).

1609159 is a wasteful number, since it uses less digits than its factorization.

1609159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 1609159 is about 1268.5263103302. The cubic root of 1609159 is about 117.1834606845.

The spelling of 1609159 in words is "one million, six hundred nine thousand, one hundred fifty-nine".