1830481 has 2 divisors, whose sum is σ = 1830482. Its totient is φ = 1830480.

The previous prime is 1830469. The next prime is 1830511. The reversal of 1830481 is 1840381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 576081 = 1120^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830481 - 2¹¹ = 1828433 is a prime.

It is a super-2 number, since 2×1830481² = 6701321382722, which contains 22 as substring.

1830481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1830401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915240 + 915241.

It is an arithmetic number, because the mean of its divisors is an integer number (915241).

2^1830481 is an apocalyptic number.

It is an amenable number.

1830481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830481 is an equidigital number, since it uses as much as digits as its factorization.

1830481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1830481 is about 1352.9526968819. The cubic root of 1830481 is about 122.3268357159.

The spelling of 1830481 in words is "one million, eight hundred thirty thousand, four hundred eighty-one".