1831330045 has 8 divisors (see below), whose sum is σ = 2197984824. Its totient is φ = 1464804864.

The previous prime is 1831330021. The next prime is 1831330057. The reversal of 1831330045 is 5400331381.

It can be written as a sum of positive squares in 4 ways, for example, as 565535961 + 1265794084 = 23781^2 + 35578^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1831330045 - 2⁷ = 1831329917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1831329995 and 1831330022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017 + ... + 60553.

It is an arithmetic number, because the mean of its divisors is an integer number (274748103).

Almost surely, 2^1831330045 is an apocalyptic number.

It is an amenable number.

1831330045 is a deficient number, since it is larger than the sum of its proper divisors (366654779).

1831330045 is an equidigital number, since it uses as much as digits as its factorization.

1831330045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64799.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1831330045 is about 42794.0421671055. The cubic root of 1831330045 is about 1223.4574603405.

The spelling of 1831330045 in words is "one billion, eight hundred thirty-one million, three hundred thirty thousand, forty-five".