131554221051215 has 8 divisors (see below), whose sum is σ = 159017365008720. Its totient is φ = 104475177009472.

The previous prime is 131554221051203. The next prime is 131554221051217. The reversal of 131554221051215 is 512150122455131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131554221051215 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131554221051217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96024978185 + ... + 96024979554.

It is an arithmetic number, because the mean of its divisors is an integer number (19877170626090).

Almost surely, 2^{131554221051215} is an apocalyptic number.

131554221051215 is a deficient number, since it is larger than the sum of its proper divisors (27463143957505).

131554221051215 is a wasteful number, since it uses less digits than its factorization.

131554221051215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192049957881.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 131554221051215 in words is "one hundred thirty-one trillion, five hundred fifty-four billion, two hundred twenty-one million, fifty-one thousand, two hundred fifteen".