2631427237 has 2 divisors, whose sum is σ = 2631427238. Its totient is φ = 2631427236.

The previous prime is 2631427189. The next prime is 2631427247. The reversal of 2631427237 is 7327241362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2507906241 + 123520996 = 50079^2 + 11114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631427237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2631427196 and 2631427205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631427247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315713618 + 1315713619.

It is an arithmetic number, because the mean of its divisors is an integer number (1315713619).

Almost surely, 2^2631427237 is an apocalyptic number.

It is an amenable number.

2631427237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631427237 is an equidigital number, since it uses as much as digits as its factorization.

2631427237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 37.

The square root of 2631427237 is about 51297.4388931845. The cubic root of 2631427237 is about 1380.5870283107.

Adding to 2631427237 its reverse (7327241362), we get a palindrome (9958668599).

The spelling of 2631427237 in words is "two billion, six hundred thirty-one million, four hundred twenty-seven thousand, two hundred thirty-seven".