2315140549 has 2 divisors, whose sum is σ = 2315140550. Its totient is φ = 2315140548.

The previous prime is 2315140547. The next prime is 2315140561. The reversal of 2315140549 is 9450415132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1607208100 + 707932449 = 40090^2 + 26607^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315140549 - 2¹ = 2315140547 is a prime.

Together with 2315140547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315140547) by changing a digit.

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 as a sum of consecutive naturals, namely, 1157570274 + 1157570275.

It is an arithmetic number, because the mean of its divisors is an integer number (1157570275).

Almost surely, 2^2315140549 is an apocalyptic number.

It is an amenable number.

2315140549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315140549 is an equidigital number, since it uses as much as digits as its factorization.

2315140549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2315140549 is about 48115.9074423418. The cubic root of 2315140549 is about 1322.8962555579.

The spelling of 2315140549 in words is "two billion, three hundred fifteen million, one hundred forty thousand, five hundred forty-nine".