131005543215 has 16 divisors (see below), whose sum is σ = 216370446336. Its totient is φ = 67615764000.

The previous prime is 131005543187. The next prime is 131005543223. The reversal of 131005543215 is 512345500131.

It is not a de Polignac number, because 131005543215 - 2¹⁴ = 131005526831 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140865711 + ... + 140866640.

It is an arithmetic number, because the mean of its divisors is an integer number (13523152896).

Almost surely, 2^131005543215 is an apocalyptic number.

131005543215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131005543215 is a deficient number, since it is larger than the sum of its proper divisors (85364903121).

131005543215 is a wasteful number, since it uses less digits than its factorization.

131005543215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281732390.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 131005543215 in words is "one hundred thirty-one billion, five million, five hundred forty-three thousand, two hundred fifteen".