6243131129 has 2 divisors, whose sum is σ = 6243131130. Its totient is φ = 6243131128.

The previous prime is 6243131117. The next prime is 6243131189. The reversal of 6243131129 is 9211313426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6205185529 + 37945600 = 78773^2 + 6160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6243131129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6243131095 and 6243131104.

It is not a weakly prime, because it can be changed into another prime (6243131189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121565564 + 3121565565.

It is an arithmetic number, because the mean of its divisors is an integer number (3121565565).

Almost surely, 2^6243131129 is an apocalyptic number.

It is an amenable number.

6243131129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6243131129 is an equidigital number, since it uses as much as digits as its factorization.

6243131129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 6243131129 is about 79013.4870069661. The cubic root of 6243131129 is about 1841.3406983051.

The spelling of 6243131129 in words is "six billion, two hundred forty-three million, one hundred thirty-one thousand, one hundred twenty-nine".