139066172593 has 2 divisors, whose sum is σ = 139066172594. Its totient is φ = 139066172592.

The previous prime is 139066172563. The next prime is 139066172653. The reversal of 139066172593 is 395271660931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125934846129 + 13131326464 = 354873^2 + 114592^2 .

It is a cyclic number.

It is not a de Polignac number, because 139066172593 - 2⁵ = 139066172561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139066172593.

It is not a weakly prime, because it can be changed into another prime (139066172563) 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, 69533086296 + 69533086297.

It is an arithmetic number, because the mean of its divisors is an integer number (69533086297).

Almost surely, 2^139066172593 is an apocalyptic number.

It is an amenable number.

139066172593 is a deficient number, since it is larger than the sum of its proper divisors (1).

139066172593 is an equidigital number, since it uses as much as digits as its factorization.

139066172593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The spelling of 139066172593 in words is "one hundred thirty-nine billion, sixty-six million, one hundred seventy-two thousand, five hundred ninety-three".