139127743 has 2 divisors, whose sum is σ = 139127744. Its totient is φ = 139127742.

The previous prime is 139127699. The next prime is 139127767. The reversal of 139127743 is 347721931.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (347721931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139127743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139127773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69563871 + 69563872.

It is an arithmetic number, because the mean of its divisors is an integer number (69563872).

Almost surely, 2^139127743 is an apocalyptic number.

139127743 is a deficient number, since it is larger than the sum of its proper divisors (1).

139127743 is an equidigital number, since it uses as much as digits as its factorization.

139127743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 139127743 is about 11795.2423883530. The cubic root of 139127743 is about 518.1687844106.

The spelling of 139127743 in words is "one hundred thirty-nine million, one hundred twenty-seven thousand, seven hundred forty-three".