131444087 has 2 divisors, whose sum is σ = 131444088. Its totient is φ = 131444086.

The previous prime is 131444083. The next prime is 131444129. The reversal of 131444087 is 780444131.

It is a weak prime.

It is an emirp because it is prime and its reverse (780444131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131444087 - 2² = 131444083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131444083) by changing a digit.

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 as a sum of consecutive naturals, namely, 65722043 + 65722044.

It is an arithmetic number, because the mean of its divisors is an integer number (65722044).

Almost surely, 2^131444087 is an apocalyptic number.

131444087 is a deficient number, since it is larger than the sum of its proper divisors (1).

131444087 is an equidigital number, since it uses as much as digits as its factorization.

131444087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 131444087 is about 11464.9067593243. The cubic root of 131444087 is about 508.4485557555.

The spelling of 131444087 in words is "one hundred thirty-one million, four hundred forty-four thousand, eighty-seven".