1830321513 has 36 divisors (see below), whose sum is σ = 2738162700. Its totient is φ = 1178084736.

The previous prime is 1830321487. The next prime is 1830321523. The reversal of 1830321513 is 3151230381.

It can be written as a sum of positive squares in 6 ways, for example, as 330076224 + 1500245289 = 18168^2 + 38733^2 .

It is not a de Polignac number, because 1830321513 - 2⁹ = 1830321001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1830321523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1835331 + ... + 1836327.

It is an arithmetic number, because the mean of its divisors is an integer number (76060075).

Almost surely, 2^1830321513 is an apocalyptic number.

It is an amenable number.

1830321513 is a deficient number, since it is larger than the sum of its proper divisors (907841187).

1830321513 is a wasteful number, since it uses less digits than its factorization.

1830321513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1830321513 is about 42782.2569881487. The cubic root of 1830321513 is about 1223.2328289624.

Adding to 1830321513 its reverse (3151230381), we get a palindrome (4981551894).

The spelling of 1830321513 in words is "one billion, eight hundred thirty million, three hundred twenty-one thousand, five hundred thirteen".