139343 has 2 divisors, whose sum is σ = 139344. Its totient is φ = 139342.

The previous prime is 139339. The next prime is 139361. The reversal of 139343 is 343931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139343 - 2² = 139339 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139303) 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 as a sum of consecutive naturals, namely, 69671 + 69672.

It is an arithmetic number, because the mean of its divisors is an integer number (69672).

2¹³⁹³⁴³ is an apocalyptic number.

139343 is a deficient number, since it is larger than the sum of its proper divisors (1).

139343 is an equidigital number, since it uses as much as digits as its factorization.

139343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 23.

The square root of 139343 is about 373.2867530465. The cubic root of 139343 is about 51.8435881830.

The spelling of 139343 in words is "one hundred thirty-nine thousand, three hundred forty-three".