131658966 has 32 divisors (see below), whose sum is σ = 293068800. Its totient is φ = 43812360.

The previous prime is 131658937. The next prime is 131659001. The reversal of 131658966 is 669856131.

131658966 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 589 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37131 + ... + 40521.

It is an arithmetic number, because the mean of its divisors is an integer number (9158400).

Almost surely, 2^131658966 is an apocalyptic number.

131658966 is an abundant number, since it is smaller than the sum of its proper divisors (161409834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131658966 is a wasteful number, since it uses less digits than its factorization.

131658966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4115 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 131658966 is about 11474.2740946868. The cubic root of 131658966 is about 508.7254680120.

The spelling of 131658966 in words is "one hundred thirty-one million, six hundred fifty-eight thousand, nine hundred sixty-six".