131929 has 8 divisors (see below), whose sum is σ = 154368. Its totient is φ = 110400.

The previous prime is 131927. The next prime is 131933. The reversal of 131929 is 929131.

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

It is a cyclic number.

It is not a de Polignac number, because 131929 - 2¹ = 131927 is a prime.

It is a super-2 number, since 2×131929² = 34810522082, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (131927) 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, 129 + ... + 529.

It is an arithmetic number, because the mean of its divisors is an integer number (19296).

2¹³¹⁹²⁹ is an apocalyptic number.

It is an amenable number.

131929 is a deficient number, since it is larger than the sum of its proper divisors (22439).

131929 is an equidigital number, since it uses as much as digits as its factorization.

131929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 486, while the sum is 25.

The square root of 131929 is about 363.2203188149. The cubic root of 131929 is about 50.9073031028.

The spelling of 131929 in words is "one hundred thirty-one thousand, nine hundred twenty-nine".