1609316 has 6 divisors (see below), whose sum is σ = 2816310. Its totient is φ = 804656.

The previous prime is 1609301. The next prime is 1609367. The reversal of 1609316 is 6139061.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 792100 = 904^2 + 890^2 .

It is an Ulam number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201161 + ... + 201168.

It is an arithmetic number, because the mean of its divisors is an integer number (469385).

2^1609316 is an apocalyptic number.

It is an amenable number.

1609316 is a deficient number, since it is larger than the sum of its proper divisors (1206994).

1609316 is a wasteful number, since it uses less digits than its factorization.

1609316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402333 (or 402331 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1609316 is about 1268.5881916524. The cubic root of 1609316 is about 117.1872716203.

The spelling of 1609316 in words is "one million, six hundred nine thousand, three hundred sixteen".