131376135165 has 16 divisors (see below), whose sum is σ = 229311072576. Its totient is φ = 63697520000.

The previous prime is 131376135103. The next prime is 131376135197. The reversal of 131376135165 is 561531673131.

It is not a de Polignac number, because 131376135165 - 2¹¹ = 131376133117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 398109336 + ... + 398109665.

It is an arithmetic number, because the mean of its divisors is an integer number (14331942036).

Almost surely, 2^131376135165 is an apocalyptic number.

131376135165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131376135165 is a deficient number, since it is larger than the sum of its proper divisors (97934937411).

131376135165 is a wasteful number, since it uses less digits than its factorization.

131376135165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796219020.

The product of its digits is 170100, while the sum is 42.

The spelling of 131376135165 in words is "one hundred thirty-one billion, three hundred seventy-six million, one hundred thirty-five thousand, one hundred sixty-five".