131446 has 16 divisors (see below), whose sum is σ = 231840. Its totient is φ = 54720.

The previous prime is 131441. The next prime is 131447. The reversal of 131446 is 644131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 460 + ... + 688.

It is an arithmetic number, because the mean of its divisors is an integer number (14490).

2¹³¹⁴⁴⁶ is an apocalyptic number.

131446 is a deficient number, since it is larger than the sum of its proper divisors (100394).

131446 is a wasteful number, since it uses less digits than its factorization.

131446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 288, while the sum is 19.

The square root of 131446 is about 362.5548234405. The cubic root of 131446 is about 50.8451022349.

Adding to 131446 its reverse (644131), we get a palindrome (775577).

The spelling of 131446 in words is "one hundred thirty-one thousand, four hundred forty-six".