139958042929 has 2 divisors, whose sum is σ = 139958042930. Its totient is φ = 139958042928.

The previous prime is 139958042909. The next prime is 139958042941. The reversal of 139958042929 is 929240859931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80508387600 + 59449655329 = 283740^2 + 243823^2 .

It is an emirp because it is prime and its reverse (929240859931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139958042929 - 2¹¹ = 139958040881 is a prime.

It is not a weakly prime, because it can be changed into another prime (139958042909) 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, 69979021464 + 69979021465.

It is an arithmetic number, because the mean of its divisors is an integer number (69979021465).

Almost surely, 2^139958042929 is an apocalyptic number.

It is an amenable number.

139958042929 is a deficient number, since it is larger than the sum of its proper divisors (1).

139958042929 is an equidigital number, since it uses as much as digits as its factorization.

139958042929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 139958042929 in words is "one hundred thirty-nine billion, nine hundred fifty-eight million, forty-two thousand, nine hundred twenty-nine".