131306552005 has 16 divisors (see below), whose sum is σ = 159974874864. Its totient is φ = 103452410880.

The previous prime is 131306551993. The next prime is 131306552009. The reversal of 131306552005 is 500255603131.

It can be written as a sum of positive squares in 8 ways, for example, as 45877784481 + 85428767524 = 214191^2 + 292282^2 .

It is not a de Polignac number, because 131306552005 - 2¹⁷ = 131306420933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131306552009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651426 + ... + 828835.

It is an arithmetic number, because the mean of its divisors is an integer number (9998429679).

Almost surely, 2^131306552005 is an apocalyptic number.

It is an amenable number.

131306552005 is a deficient number, since it is larger than the sum of its proper divisors (28668322859).

131306552005 is a wasteful number, since it uses less digits than its factorization.

131306552005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480536.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 131306552005 in words is "one hundred thirty-one billion, three hundred six million, five hundred fifty-two thousand, five".