139410017 has 2 divisors, whose sum is σ = 139410018. Its totient is φ = 139410016.

The previous prime is 139409993. The next prime is 139410023. The reversal of 139410017 is 710014931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109914256 + 29495761 = 10484^2 + 5431^2 .

It is an emirp because it is prime and its reverse (710014931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139410017 - 2²² = 135215713 is a prime.

It is not a weakly prime, because it can be changed into another prime (139410067) 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, 69705008 + 69705009.

It is an arithmetic number, because the mean of its divisors is an integer number (69705009).

Almost surely, 2^139410017 is an apocalyptic number.

It is an amenable number.

139410017 is a deficient number, since it is larger than the sum of its proper divisors (1).

139410017 is an equidigital number, since it uses as much as digits as its factorization.

139410017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 139410017 is about 11807.2019123923. The cubic root of 139410017 is about 518.5189824014.

Adding to 139410017 its reverse (710014931), we get a palindrome (849424948).

It can be divided in two parts, 1394 and 10017, that added together give a palindrome (11411).

The spelling of 139410017 in words is "one hundred thirty-nine million, four hundred ten thousand, seventeen".