131429 has 4 divisors (see below), whose sum is σ = 132384. Its totient is φ = 130476.

The previous prime is 131413. The next prime is 131431. The reversal of 131429 is 924131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 131429 - 2⁴ = 131413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131429.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 131429.

It is not an unprimeable number, because it can be changed into a prime (131449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (33096).

2¹³¹⁴²⁹ is an apocalyptic number.

It is an amenable number.

131429 is a deficient number, since it is larger than the sum of its proper divisors (955).

131429 is an equidigital number, since it uses as much as digits as its factorization.

131429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954.

The product of its digits is 216, while the sum is 20.

The square root of 131429 is about 362.5313779523. The cubic root of 131429 is about 50.8429101966.

The spelling of 131429 in words is "one hundred thirty-one thousand, four hundred twenty-nine".