131056254997 has 2 divisors, whose sum is σ = 131056254998. Its totient is φ = 131056254996.

The previous prime is 131056254947. The next prime is 131056255009. The reversal of 131056254997 is 799452650131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110324286801 + 20731968196 = 332151^2 + 143986^2 .

It is a cyclic number.

It is not a de Polignac number, because 131056254997 - 2³¹ = 128908771349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131056254947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65528127498 + 65528127499.

It is an arithmetic number, because the mean of its divisors is an integer number (65528127499).

Almost surely, 2^131056254997 is an apocalyptic number.

It is an amenable number.

131056254997 is a deficient number, since it is larger than the sum of its proper divisors (1).

131056254997 is an equidigital number, since it uses as much as digits as its factorization.

131056254997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 131056254997 in words is "one hundred thirty-one billion, fifty-six million, two hundred fifty-four thousand, nine hundred ninety-seven".