2140189361 has 2 divisors, whose sum is σ = 2140189362. Its totient is φ = 2140189360.

The previous prime is 2140189339. The next prime is 2140189411. The reversal of 2140189361 is 1639810412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206520225 + 933669136 = 34735^2 + 30556^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140189361 - 2⁶ = 2140189297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2140189561) 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, 1070094680 + 1070094681.

It is an arithmetic number, because the mean of its divisors is an integer number (1070094681).

Almost surely, 2^2140189361 is an apocalyptic number.

It is an amenable number.

2140189361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140189361 is an equidigital number, since it uses as much as digits as its factorization.

2140189361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 2140189361 is about 46262.1806770930. The cubic root of 2140189361 is about 1288.6967510329.

Adding to 2140189361 its reverse (1639810412), we get a palindrome (3779999773).

The spelling of 2140189361 in words is "two billion, one hundred forty million, one hundred eighty-nine thousand, three hundred sixty-one".