6631112149 has 2 divisors, whose sum is σ = 6631112150. Its totient is φ = 6631112148.

The previous prime is 6631112143. The next prime is 6631112239. The reversal of 6631112149 is 9412111366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4398077124 + 2233035025 = 66318^2 + 47255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6631112149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6631112143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315556074 + 3315556075.

It is an arithmetic number, because the mean of its divisors is an integer number (3315556075).

Almost surely, 2^6631112149 is an apocalyptic number.

It is an amenable number.

6631112149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6631112149 is an equidigital number, since it uses as much as digits as its factorization.

6631112149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 6631112149 is about 81431.6409573085. The cubic root of 6631112149 is about 1878.7202839349.

The spelling of 6631112149 in words is "six billion, six hundred thirty-one million, one hundred twelve thousand, one hundred forty-nine".