2531115241 has 2 divisors, whose sum is σ = 2531115242. Its totient is φ = 2531115240.

The previous prime is 2531115239. The next prime is 2531115259. The reversal of 2531115241 is 1425111352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1935560025 + 595555216 = 43995^2 + 24404^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531115241 - 2¹ = 2531115239 is a prime.

Together with 2531115239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2531115211) 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, 1265557620 + 1265557621.

It is an arithmetic number, because the mean of its divisors is an integer number (1265557621).

Almost surely, 2^2531115241 is an apocalyptic number.

It is an amenable number.

2531115241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531115241 is an equidigital number, since it uses as much as digits as its factorization.

2531115241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 2531115241 is about 50310.1902302108. The cubic root of 2531115241 is about 1362.8162591723.

Adding to 2531115241 its reverse (1425111352), we get a palindrome (3956226593).

The spelling of 2531115241 in words is "two billion, five hundred thirty-one million, one hundred fifteen thousand, two hundred forty-one".