131554555541243 has 8 divisors (see below), whose sum is σ = 134617518327600. Its totient is φ = 128491754323968.

The previous prime is 131554555541219. The next prime is 131554555541327. The reversal of 131554555541243 is 342145555455131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131554555541243 - 2⁸ = 131554555540987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131554555547243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38744078 + ... + 42002531.

It is an arithmetic number, because the mean of its divisors is an integer number (16827189790950).

Almost surely, 2^{131554555541243} is an apocalyptic number.

131554555541243 is a deficient number, since it is larger than the sum of its proper divisors (3062962786357).

131554555541243 is an equidigital number, since it uses as much as digits as its factorization.

131554555541243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80784541.

The product of its digits is 18000000, while the sum is 53.

The spelling of 131554555541243 in words is "one hundred thirty-one trillion, five hundred fifty-four billion, five hundred fifty-five million, five hundred forty-one thousand, two hundred forty-three".