139789343 has 2 divisors, whose sum is σ = 139789344. Its totient is φ = 139789342.

The previous prime is 139789337. The next prime is 139789373. The reversal of 139789343 is 343987931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139789343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139789303) 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, 69894671 + 69894672.

It is an arithmetic number, because the mean of its divisors is an integer number (69894672).

Almost surely, 2^139789343 is an apocalyptic number.

139789343 is a deficient number, since it is larger than the sum of its proper divisors (1).

139789343 is an equidigital number, since it uses as much as digits as its factorization.

139789343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 139789343 is about 11823.2543320357. The cubic root of 139789343 is about 518.9888424904.

The spelling of 139789343 in words is "one hundred thirty-nine million, seven hundred eighty-nine thousand, three hundred forty-three".