139309211929 has 2 divisors, whose sum is σ = 139309211930. Its totient is φ = 139309211928.

The previous prime is 139309211887. The next prime is 139309211947. The reversal of 139309211929 is 929112903931.

139309211929 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., 114973211929 + 24336000000 = 339077^2 + 156000^2 .

It is a cyclic number.

It is not a de Polignac number, because 139309211929 - 2⁹ = 139309211417 is a prime.

It is not a weakly prime, because it can be changed into another prime (139309281929) 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, 69654605964 + 69654605965.

It is an arithmetic number, because the mean of its divisors is an integer number (69654605965).

Almost surely, 2^139309211929 is an apocalyptic number.

It is an amenable number.

139309211929 is a deficient number, since it is larger than the sum of its proper divisors (1).

139309211929 is an equidigital number, since it uses as much as digits as its factorization.

139309211929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 49.

The spelling of 139309211929 in words is "one hundred thirty-nine billion, three hundred nine million, two hundred eleven thousand, nine hundred twenty-nine".