2131524247 has 2 divisors, whose sum is σ = 2131524248. Its totient is φ = 2131524246.

The previous prime is 2131524229. The next prime is 2131524323. The reversal of 2131524247 is 7424251312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131524247 - 2¹¹ = 2131522199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131524047) 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, 1065762123 + 1065762124.

It is an arithmetic number, because the mean of its divisors is an integer number (1065762124).

Almost surely, 2^2131524247 is an apocalyptic number.

2131524247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131524247 is an equidigital number, since it uses as much as digits as its factorization.

2131524247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 2131524247 is about 46168.4334475408. The cubic root of 2131524247 is about 1286.9551903889.

Adding to 2131524247 its reverse (7424251312), we get a palindrome (9555775559).

The spelling of 2131524247 in words is "two billion, one hundred thirty-one million, five hundred twenty-four thousand, two hundred forty-seven".