139322543 has 2 divisors, whose sum is σ = 139322544. Its totient is φ = 139322542.

The previous prime is 139322539. The next prime is 139322549. The reversal of 139322543 is 345223931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139322543 - 2² = 139322539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139322549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69661271 + 69661272.

It is an arithmetic number, because the mean of its divisors is an integer number (69661272).

Almost surely, 2^139322543 is an apocalyptic number.

139322543 is a deficient number, since it is larger than the sum of its proper divisors (1).

139322543 is an equidigital number, since it uses as much as digits as its factorization.

139322543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 139322543 is about 11803.4970665477. The cubic root of 139322543 is about 518.4105099968.

The spelling of 139322543 in words is "one hundred thirty-nine million, three hundred twenty-two thousand, five hundred forty-three".