131849 has 2 divisors, whose sum is σ = 131850. Its totient is φ = 131848.

The previous prime is 131839. The next prime is 131861. The reversal of 131849 is 948131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 60025 = 268^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65924 + 65925.

It is an arithmetic number, because the mean of its divisors is an integer number (65925).

2¹³¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

131849 is a deficient number, since it is larger than the sum of its proper divisors (1).

131849 is an equidigital number, since it uses as much as digits as its factorization.

131849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 131849 is about 363.1101761174. The cubic root of 131849 is about 50.8970111839.

The spelling of 131849 in words is "one hundred thirty-one thousand, eight hundred forty-nine".