1814085641 has 2 divisors, whose sum is σ = 1814085642. Its totient is φ = 1814085640.

The previous prime is 1814085619. The next prime is 1814085659. The reversal of 1814085641 is 1465804181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1812290041 + 1795600 = 42571^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814085641 - 2³⁰ = 740343817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1814085595 and 1814085604.

It is not a weakly prime, because it can be changed into another prime (1814085661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907042820 + 907042821.

It is an arithmetic number, because the mean of its divisors is an integer number (907042821).

Almost surely, 2^1814085641 is an apocalyptic number.

It is an amenable number.

1814085641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814085641 is an equidigital number, since it uses as much as digits as its factorization.

1814085641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 1814085641 is about 42592.0842528280. The cubic root of 1814085641 is about 1219.6051846600.

The spelling of 1814085641 in words is "one billion, eight hundred fourteen million, eighty-five thousand, six hundred forty-one".