131946 has 8 divisors (see below), whose sum is σ = 263904. Its totient is φ = 43980.

The previous prime is 131941. The next prime is 131947. The reversal of 131946 is 649131.

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

131946 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131941) by changing a digit.

131946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10990 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (32988).

2¹³¹⁹⁴⁶ is an apocalyptic number.

131946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131946 is a wasteful number, since it uses less digits than its factorization.

131946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21996.

The product of its digits is 648, while the sum is 24.

The square root of 131946 is about 363.2437198356. The cubic root of 131946 is about 50.9094895995.

The spelling of 131946 in words is "one hundred thirty-one thousand, nine hundred forty-six".