131192782447 has 2 divisors, whose sum is σ = 131192782448. Its totient is φ = 131192782446.

The previous prime is 131192782333. The next prime is 131192782489. The reversal of 131192782447 is 744287291131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131192782447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131192782447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131192722447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65596391223 + 65596391224.

It is an arithmetic number, because the mean of its divisors is an integer number (65596391224).

Almost surely, 2^131192782447 is an apocalyptic number.

131192782447 is a deficient number, since it is larger than the sum of its proper divisors (1).

131192782447 is an equidigital number, since it uses as much as digits as its factorization.

131192782447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The spelling of 131192782447 in words is "one hundred thirty-one billion, one hundred ninety-two million, seven hundred eighty-two thousand, four hundred forty-seven".