10309139 has 2 divisors, whose sum is σ = 10309140. Its totient is φ = 10309138.

The previous prime is 10309099. The next prime is 10309141. The reversal of 10309139 is 93190301.

10309139 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10309139 is a prime.

Together with 10309141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10302139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5154569 + 5154570.

It is an arithmetic number, because the mean of its divisors is an integer number (5154570).

Almost surely, 2^10309139 is an apocalyptic number.

10309139 is a deficient number, since it is larger than the sum of its proper divisors (1).

10309139 is an equidigital number, since it uses as much as digits as its factorization.

10309139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 10309139 is about 3210.7847950306. The cubic root of 10309139 is about 217.6410429695.

The spelling of 10309139 in words is "ten million, three hundred nine thousand, one hundred thirty-nine".