131959855057 has 4 divisors (see below), whose sum is σ = 132148100916. Its totient is φ = 131771609200.

The previous prime is 131959855037. The next prime is 131959855063. The reversal of 131959855057 is 750558959131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750558959131 = 173819 ⋅4318049.

It can be written as a sum of positive squares in 2 ways, for example, as 81566788801 + 50393066256 = 285599^2 + 224484^2 .

It is a cyclic number.

It is not a de Polignac number, because 131959855057 - 2¹⁵ = 131959822289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131959854992 and 131959855010.

It is not an unprimeable number, because it can be changed into a prime (131959855037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94121878 + ... + 94123279.

It is an arithmetic number, because the mean of its divisors is an integer number (33037025229).

Almost surely, 2^131959855057 is an apocalyptic number.

It is an amenable number.

131959855057 is a deficient number, since it is larger than the sum of its proper divisors (188245859).

131959855057 is an equidigital number, since it uses as much as digits as its factorization.

131959855057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188245858.

The product of its (nonzero) digits is 8505000, while the sum is 58.

The spelling of 131959855057 in words is "one hundred thirty-one billion, nine hundred fifty-nine million, eight hundred fifty-five thousand, fifty-seven".