131404352521505 has 16 divisors (see below), whose sum is σ = 180211961265024. Its totient is φ = 90105702825600.

The previous prime is 131404352521433. The next prime is 131404352521513. The reversal of 131404352521505 is 505125253404131.

It is not a de Polignac number, because 131404352521505 - 2¹⁸ = 131404352259361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23534189 + ... + 28577381.

It is an arithmetic number, because the mean of its divisors is an integer number (11263247579064).

Almost surely, 2^{131404352521505} is an apocalyptic number.

It is an amenable number.

131404352521505 is a deficient number, since it is larger than the sum of its proper divisors (48807608743519).

131404352521505 is an equidigital number, since it uses as much as digits as its factorization.

131404352521505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5787656.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 131404352521505 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred fifty-two million, five hundred twenty-one thousand, five hundred five".