131884843 has 4 divisors (see below), whose sum is σ = 133742448. Its totient is φ = 130027240.

The previous prime is 131884787. The next prime is 131884849. The reversal of 131884843 is 348488131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348488131 = 1619 ⋅215249.

It is a cyclic number.

It is not a de Polignac number, because 131884843 - 2²⁵ = 98330411 is a prime.

It is a super-2 number, since 2×131884843² = 34787223626269298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131884796 and 131884805.

It is not an unprimeable number, because it can be changed into a prime (131884849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928696 + ... + 928837.

It is an arithmetic number, because the mean of its divisors is an integer number (33435612).

Almost surely, 2^131884843 is an apocalyptic number.

131884843 is a deficient number, since it is larger than the sum of its proper divisors (1857605).

131884843 is an equidigital number, since it uses as much as digits as its factorization.

131884843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857604.

The product of its digits is 73728, while the sum is 40.

The square root of 131884843 is about 11484.1126344180. The cubic root of 131884843 is about 509.0162286413.

The spelling of 131884843 in words is "one hundred thirty-one million, eight hundred eighty-four thousand, eight hundred forty-three".