1830565 has 16 divisors (see below), whose sum is σ = 2431296. Its totient is φ = 1312000.

The previous prime is 1830559. The next prime is 1830571. The reversal of 1830565 is 5650381.

It is an interprime number because it is at equal distance from previous prime (1830559) and next prime (1830571).

It is not a de Polignac number, because 1830565 - 2³ = 1830557 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4365 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

2^1830565 is an apocalyptic number.

It is an amenable number.

1830565 is a deficient number, since it is larger than the sum of its proper divisors (600731).

1830565 is a wasteful number, since it uses less digits than its factorization.

1830565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1830565 is about 1352.9837397397. The cubic root of 1830565 is about 122.3287068629.

The spelling of 1830565 in words is "one million, eight hundred thirty thousand, five hundred sixty-five".