131786486 has 16 divisors (see below), whose sum is σ = 217838544. Its totient is φ = 59409504.

The previous prime is 131786453. The next prime is 131786491. The reversal of 131786486 is 684687131.

131786486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 7 ways as a sum of consecutive naturals, for example, 57821 + ... + 60056.

It is an arithmetic number, because the mean of its divisors is an integer number (13614909).

Almost surely, 2^131786486 is an apocalyptic number.

131786486 is a deficient number, since it is larger than the sum of its proper divisors (86052058).

131786486 is a wasteful number, since it uses less digits than its factorization.

131786486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117935.

The product of its digits is 193536, while the sum is 44.

The square root of 131786486 is about 11479.8295283510. The cubic root of 131786486 is about 508.8896592314.

The spelling of 131786486 in words is "one hundred thirty-one million, seven hundred eighty-six thousand, four hundred eighty-six".