131839 has 2 divisors, whose sum is σ = 131840. Its totient is φ = 131838.

The previous prime is 131837. The next prime is 131849. The reversal of 131839 is 938131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131839 - 2¹ = 131837 is a prime.

Together with 131837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65919 + 65920.

It is an arithmetic number, because the mean of its divisors is an integer number (65920).

2¹³¹⁸³⁹ is an apocalyptic number.

131839 is a deficient number, since it is larger than the sum of its proper divisors (1).

131839 is an equidigital number, since it uses as much as digits as its factorization.

131839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 131839 is about 363.0964059310. The cubic root of 131839 is about 50.8957244013.

The spelling of 131839 in words is "one hundred thirty-one thousand, eight hundred thirty-nine".