139078007 has 2 divisors, whose sum is σ = 139078008. Its totient is φ = 139078006.

The previous prime is 139078001. The next prime is 139078021. The reversal of 139078007 is 700870931.

It is a weak prime.

It is an emirp because it is prime and its reverse (700870931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139078007 - 2⁸ = 139077751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139078001) 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, 69539003 + 69539004.

It is an arithmetic number, because the mean of its divisors is an integer number (69539004).

Almost surely, 2^139078007 is an apocalyptic number.

139078007 is a deficient number, since it is larger than the sum of its proper divisors (1).

139078007 is an equidigital number, since it uses as much as digits as its factorization.

139078007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 139078007 is about 11793.1338922273. The cubic root of 139078007 is about 518.1070312963.

It can be divided in two parts, 1390 and 78007, that added together give a palindrome (79397).

The spelling of 139078007 in words is "one hundred thirty-nine million, seventy-eight thousand, seven".