131963866 has 8 divisors (see below), whose sum is σ = 200733984. Its totient is φ = 65052540.

The previous prime is 131963837. The next prime is 131963879. The reversal of 131963866 is 668369131.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 464520 + ... + 464803.

It is an arithmetic number, because the mean of its divisors is an integer number (25091748).

Almost surely, 2^131963866 is an apocalyptic number.

131963866 is a deficient number, since it is larger than the sum of its proper divisors (68770118).

131963866 is an equidigital number, since it uses as much as digits as its factorization.

131963866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929396.

The product of its digits is 139968, while the sum is 43.

The square root of 131963866 is about 11487.5526549392. The cubic root of 131963866 is about 509.1178727660.

The spelling of 131963866 in words is "one hundred thirty-one million, nine hundred sixty-three thousand, eight hundred sixty-six".