139997047117 has 2 divisors, whose sum is σ = 139997047118. Its totient is φ = 139997047116.

The previous prime is 139997047063. The next prime is 139997047129. The reversal of 139997047117 is 711740799931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124929730116 + 15067317001 = 353454^2 + 122749^2 .

It is a cyclic number.

It is not a de Polignac number, because 139997047117 - 2¹⁹ = 139996522829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139997041117) 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, 69998523558 + 69998523559.

It is an arithmetic number, because the mean of its divisors is an integer number (69998523559).

Almost surely, 2^139997047117 is an apocalyptic number.

It is an amenable number.

139997047117 is a deficient number, since it is larger than the sum of its proper divisors (1).

139997047117 is an equidigital number, since it uses as much as digits as its factorization.

139997047117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000564, while the sum is 58.

The spelling of 139997047117 in words is "one hundred thirty-nine billion, nine hundred ninety-seven million, forty-seven thousand, one hundred seventeen".