2185039741 has 2 divisors, whose sum is σ = 2185039742. Its totient is φ = 2185039740.

The previous prime is 2185039739. The next prime is 2185039817. The reversal of 2185039741 is 1479305812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1489188100 + 695851641 = 38590^2 + 26379^2 .

It is a cyclic number.

It is not a de Polignac number, because 2185039741 - 2¹ = 2185039739 is a prime.

Together with 2185039739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2185039694 and 2185039703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2185069741) 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 as a sum of consecutive naturals, namely, 1092519870 + 1092519871.

It is an arithmetic number, because the mean of its divisors is an integer number (1092519871).

Almost surely, 2^2185039741 is an apocalyptic number.

It is an amenable number.

2185039741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185039741 is an equidigital number, since it uses as much as digits as its factorization.

2185039741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2185039741 is about 46744.4086602879. The cubic root of 2185039741 is about 1297.6366807923.

The spelling of 2185039741 in words is "two billion, one hundred eighty-five million, thirty-nine thousand, seven hundred forty-one".