131575657597 has 2 divisors, whose sum is σ = 131575657598. Its totient is φ = 131575657596.

The previous prime is 131575657579. The next prime is 131575657613. The reversal of 131575657597 is 795756575131.

Together with previous prime (131575657579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114388709796 + 17186947801 = 338214^2 + 131099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131575657597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131575657547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65787828798 + 65787828799.

It is an arithmetic number, because the mean of its divisors is an integer number (65787828799).

Almost surely, 2^131575657597 is an apocalyptic number.

It is an amenable number.

131575657597 is a deficient number, since it is larger than the sum of its proper divisors (1).

131575657597 is an equidigital number, since it uses as much as digits as its factorization.

131575657597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34728750, while the sum is 61.

The spelling of 131575657597 in words is "one hundred thirty-one billion, five hundred seventy-five million, six hundred fifty-seven thousand, five hundred ninety-seven".