1609093221 has 8 divisors (see below), whose sum is σ = 2145854304. Its totient is φ = 1072530480.

The previous prime is 1609093151. The next prime is 1609093237. The reversal of 1609093221 is 1223909061.

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

It is not a de Polignac number, because 1609093221 - 2²² = 1604898917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609093021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29491 + ... + 63936.

It is an arithmetic number, because the mean of its divisors is an integer number (268231788).

Almost surely, 2^1609093221 is an apocalyptic number.

It is an amenable number.

1609093221 is a deficient number, since it is larger than the sum of its proper divisors (536761083).

1609093221 is an equidigital number, since it uses as much as digits as its factorization.

1609093221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99171.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1609093221 is about 40113.5042223937. The cubic root of 1609093221 is about 1171.8186392578.

The spelling of 1609093221 in words is "one billion, six hundred nine million, ninety-three thousand, two hundred twenty-one".