839142013 has 2 divisors, whose sum is σ = 839142014. Its totient is φ = 839142012.

The previous prime is 839141993. The next prime is 839142019. The reversal of 839142013 is 310241938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838797444 + 344569 = 28962^2 + 587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-839142013 is a prime.

It is equal to p_43053538 and since 839142013 and 43053538 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839142019) 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, 419571006 + 419571007.

It is an arithmetic number, because the mean of its divisors is an integer number (419571007).

Almost surely, 2^839142013 is an apocalyptic number.

It is an amenable number.

839142013 is a deficient number, since it is larger than the sum of its proper divisors (1).

839142013 is an equidigital number, since it uses as much as digits as its factorization.

839142013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 839142013 is about 28967.9480288128. The cubic root of 839142013 is about 943.2174389983.

The spelling of 839142013 in words is "eight hundred thirty-nine million, one hundred forty-two thousand, thirteen".