131946112139 has 2 divisors, whose sum is σ = 131946112140. Its totient is φ = 131946112138.

The previous prime is 131946112127. The next prime is 131946112147. The reversal of 131946112139 is 931211649131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131946112139 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 131946112096 and 131946112105.

It is not a weakly prime, because it can be changed into another prime (131946112189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65973056069 + 65973056070.

It is an arithmetic number, because the mean of its divisors is an integer number (65973056070).

Almost surely, 2^131946112139 is an apocalyptic number.

131946112139 is a deficient number, since it is larger than the sum of its proper divisors (1).

131946112139 is an equidigital number, since it uses as much as digits as its factorization.

131946112139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The spelling of 131946112139 in words is "one hundred thirty-one billion, nine hundred forty-six million, one hundred twelve thousand, one hundred thirty-nine".