138683 has 2 divisors, whose sum is σ = 138684. Its totient is φ = 138682.

The previous prime is 138679. The next prime is 138727. The reversal of 138683 is 386831.

138683 = T₂₁₂ + T₂₁₃ + ... + T₂₁₇.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138683 - 2² = 138679 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69341 + 69342.

It is an arithmetic number, because the mean of its divisors is an integer number (69342).

2¹³⁸⁶⁸³ is an apocalyptic number.

138683 is a deficient number, since it is larger than the sum of its proper divisors (1).

138683 is an equidigital number, since it uses as much as digits as its factorization.

138683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 138683 is about 372.4016648728. The cubic root of 138683 is about 51.7616059914.

The spelling of 138683 in words is "one hundred thirty-eight thousand, six hundred eighty-three".