131887066 has 16 divisors (see below), whose sum is σ = 201826080. Its totient is φ = 64618960.

The previous prime is 131887061. The next prime is 131887079. The reversal of 131887066 is 660788131.

It is not an unprimeable number, because it can be changed into a prime (131887061) 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 in 7 ways as a sum of consecutive naturals, for example, 39336 + ... + 42556.

It is an arithmetic number, because the mean of its divisors is an integer number (12614130).

Almost surely, 2^131887066 is an apocalyptic number.

131887066 is a deficient number, since it is larger than the sum of its proper divisors (69939014).

131887066 is a wasteful number, since it uses less digits than its factorization.

131887066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 131887066 is about 11484.2094198948. The cubic root of 131887066 is about 509.0190885522.

The spelling of 131887066 in words is "one hundred thirty-one million, eight hundred eighty-seven thousand, sixty-six".