10939139 has 2 divisors, whose sum is σ = 10939140. Its totient is φ = 10939138.

The previous prime is 10939129. The next prime is 10939141. The reversal of 10939139 is 93193901.

It is a happy number.

10939139 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 is an emirp because it is prime and its reverse (93193901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10939139 is a prime.

It is a super-2 number, since 2×10939139² = 239329524122642, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 10939141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10939099 and 10939108.

It is not a weakly prime, because it can be changed into another prime (10939129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5469569 + 5469570.

It is an arithmetic number, because the mean of its divisors is an integer number (5469570).

Almost surely, 2^10939139 is an apocalyptic number.

10939139 is a deficient number, since it is larger than the sum of its proper divisors (1).

10939139 is an equidigital number, since it uses as much as digits as its factorization.

10939139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 10939139 is about 3307.4369230569. The cubic root of 10939139 is about 221.9870876888.

The spelling of 10939139 in words is "ten million, nine hundred thirty-nine thousand, one hundred thirty-nine".