1610065 has 4 divisors (see below), whose sum is σ = 1932084. Its totient is φ = 1288048.

The previous prime is 1610057. The next prime is 1610083. The reversal of 1610065 is 5600161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 1347921 = 512^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610065 - 2³ = 1610057 is a prime.

It is a Duffinian number.

1610065 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161002 + ... + 161011.

It is an arithmetic number, because the mean of its divisors is an integer number (483021).

2^1610065 is an apocalyptic number.

It is an amenable number.

1610065 is a deficient number, since it is larger than the sum of its proper divisors (322019).

1610065 is an equidigital number, since it uses as much as digits as its factorization.

1610065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322018.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1610065 is about 1268.8833673746. The cubic root of 1610065 is about 117.2054490433.

The spelling of 1610065 in words is "one million, six hundred ten thousand, sixty-five".