139767193 has 2 divisors, whose sum is σ = 139767194. Its totient is φ = 139767192.

The previous prime is 139767169. The next prime is 139767197. The reversal of 139767193 is 391767931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116467264 + 23299929 = 10792^2 + 4827^2 .

It is a cyclic number.

It is not a de Polignac number, because 139767193 - 2¹³ = 139759001 is a prime.

It is not a weakly prime, because it can be changed into another prime (139767197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69883596 + 69883597.

It is an arithmetic number, because the mean of its divisors is an integer number (69883597).

Almost surely, 2^139767193 is an apocalyptic number.

It is an amenable number.

139767193 is a deficient number, since it is larger than the sum of its proper divisors (1).

139767193 is an equidigital number, since it uses as much as digits as its factorization.

139767193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214326, while the sum is 46.

The square root of 139767193 is about 11822.3175815912. The cubic root of 139767193 is about 518.9614293132.

The spelling of 139767193 in words is "one hundred thirty-nine million, seven hundred sixty-seven thousand, one hundred ninety-three".