139030260877 has 2 divisors, whose sum is σ = 139030260878. Its totient is φ = 139030260876.

The previous prime is 139030260799. The next prime is 139030260899. The reversal of 139030260877 is 778062030931.

It is a happy number.

139030260877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133220620036 + 5809640841 = 364994^2 + 76221^2 .

It is a cyclic number.

It is not a de Polignac number, because 139030260877 - 2¹⁹ = 139029736589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139030260377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69515130438 + 69515130439.

It is an arithmetic number, because the mean of its divisors is an integer number (69515130439).

Almost surely, 2^139030260877 is an apocalyptic number.

It is an amenable number.

139030260877 is a deficient number, since it is larger than the sum of its proper divisors (1).

139030260877 is an equidigital number, since it uses as much as digits as its factorization.

139030260877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 139030260877 in words is "one hundred thirty-nine billion, thirty million, two hundred sixty thousand, eight hundred seventy-seven".