131789 has 8 divisors (see below), whose sum is σ = 153408. Its totient is φ = 110880.

The previous prime is 131783. The next prime is 131797. The reversal of 131789 is 987131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131783) 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, 329 + ... + 609.

It is an arithmetic number, because the mean of its divisors is an integer number (19176).

2¹³¹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

131789 is a deficient number, since it is larger than the sum of its proper divisors (21619).

131789 is an equidigital number, since it uses as much as digits as its factorization.

131789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355.

The product of its digits is 1512, while the sum is 29.

The square root of 131789 is about 363.0275471641. The cubic root of 131789 is about 50.8892895123.

The spelling of 131789 in words is "one hundred thirty-one thousand, seven hundred eighty-nine".