131885443 has 2 divisors, whose sum is σ = 131885444. Its totient is φ = 131885442.

The previous prime is 131885437. The next prime is 131885489. The reversal of 131885443 is 344588131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131885443 - 2⁹ = 131884931 is a prime.

It is equal to p_7479073 and since 131885443 and 7479073 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (131835443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65942721 + 65942722.

It is an arithmetic number, because the mean of its divisors is an integer number (65942722).

Almost surely, 2^131885443 is an apocalyptic number.

131885443 is a deficient number, since it is larger than the sum of its proper divisors (1).

131885443 is an equidigital number, since it uses as much as digits as its factorization.

131885443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 131885443 is about 11484.1387574341. The cubic root of 131885443 is about 509.0170005502.

The spelling of 131885443 in words is "one hundred thirty-one million, eight hundred eighty-five thousand, four hundred forty-three".