1830513445 has 8 divisors (see below), whose sum is σ = 2201383800. Its totient is φ = 1461232320.

The previous prime is 1830513439. The next prime is 1830513449. The reversal of 1830513445 is 5443150381.

It can be written as a sum of positive squares in 4 ways, for example, as 283349889 + 1547163556 = 16833^2 + 39334^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1830513445 - 2⁵ = 1830513413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1830513445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830513449) 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 7 ways as a sum of consecutive naturals, for example, 394770 + ... + 399379.

It is an arithmetic number, because the mean of its divisors is an integer number (275172975).

Almost surely, 2^1830513445 is an apocalyptic number.

It is an amenable number.

1830513445 is a deficient number, since it is larger than the sum of its proper divisors (370870355).

1830513445 is an equidigital number, since it uses as much as digits as its factorization.

1830513445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794615.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1830513445 is about 42784.5000555108. The cubic root of 1830513445 is about 1223.2755845322.

It can be divided in two parts, 183051344 and 5, that multiplied together give a triangular number (915256720 = T₄₂₇₈₄).

The spelling of 1830513445 in words is "one billion, eight hundred thirty million, five hundred thirteen thousand, four hundred forty-five".