1830105 has 24 divisors (see below), whose sum is σ = 3224832. Its totient is φ = 959904.

The previous prime is 1830089. The next prime is 1830113. The reversal of 1830105 is 5010381.

It is a happy number.

It is not a de Polignac number, because 1830105 - 2⁴ = 1830089 is a prime.

It is a super-2 number, since 2×1830105² = 6698568622050, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2712 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (134368).

2^1830105 is an apocalyptic number.

1830105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1830105 is a deficient number, since it is larger than the sum of its proper divisors (1394727).

1830105 is a wasteful number, since it uses less digits than its factorization.

1830105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1830105 is about 1352.8137344069. The cubic root of 1830105 is about 122.3184594039.

Adding to 1830105 its reverse (5010381), we get a palindrome (6840486).

The spelling of 1830105 in words is "one million, eight hundred thirty thousand, one hundred five".