2105531237 has 2 divisors, whose sum is σ = 2105531238. Its totient is φ = 2105531236.

The previous prime is 2105531221. The next prime is 2105531257. The reversal of 2105531237 is 7321355012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105524996 + 6241 = 45886^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105531237 - 2⁴ = 2105531221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105531257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052765618 + 1052765619.

It is an arithmetic number, because the mean of its divisors is an integer number (1052765619).

Almost surely, 2^2105531237 is an apocalyptic number.

It is an amenable number.

2105531237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105531237 is an equidigital number, since it uses as much as digits as its factorization.

2105531237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 2105531237 is about 45886.0680054415. The cubic root of 2105531237 is about 1281.7024946840.

Adding to 2105531237 its reverse (7321355012), we get a palindrome (9426886249).

The spelling of 2105531237 in words is "two billion, one hundred five million, five hundred thirty-one thousand, two hundred thirty-seven".