139932393193 has 2 divisors, whose sum is σ = 139932393194. Its totient is φ = 139932393192.

The previous prime is 139932393179. The next prime is 139932393299. The reversal of 139932393193 is 391393239931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89690067289 + 50242325904 = 299483^2 + 224148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139932393193 is a prime.

It is not a weakly prime, because it can be changed into another prime (139932399193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69966196596 + 69966196597.

It is an arithmetic number, because the mean of its divisors is an integer number (69966196597).

Almost surely, 2^139932393193 is an apocalyptic number.

It is an amenable number.

139932393193 is a deficient number, since it is larger than the sum of its proper divisors (1).

139932393193 is an equidigital number, since it uses as much as digits as its factorization.

139932393193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3188646, while the sum is 55.

The spelling of 139932393193 in words is "one hundred thirty-nine billion, nine hundred thirty-two million, three hundred ninety-three thousand, one hundred ninety-three".