1609099 has 2 divisors, whose sum is σ = 1609100. Its totient is φ = 1609098.

The previous prime is 1609087. The next prime is 1609109. The reversal of 1609099 is 9909061.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9909061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1609099 - 2¹¹ = 1607051 is a prime.

1609099 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1609009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804549 + 804550.

It is an arithmetic number, because the mean of its divisors is an integer number (804550).

2^1609099 is an apocalyptic number.

1609099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609099 is an equidigital number, since it uses as much as digits as its factorization.

1609099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1609099 is about 1268.5026606200. The cubic root of 1609099 is about 117.1820042104.

The spelling of 1609099 in words is "one million, six hundred nine thousand, ninety-nine".