10291139 has 2 divisors, whose sum is σ = 10291140. Its totient is φ = 10291138.

The previous prime is 10291129. The next prime is 10291157. The reversal of 10291139 is 93119201.

10291139 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10291139 is a prime.

It is a Sophie Germain prime.

It is equal to p₆₈₂₆₄₀ and since 10291139 and 682640 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (10291129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5145569 + 5145570.

It is an arithmetic number, because the mean of its divisors is an integer number (5145570).

Almost surely, 2^10291139 is an apocalyptic number.

10291139 is a deficient number, since it is larger than the sum of its proper divisors (1).

10291139 is an equidigital number, since it uses as much as digits as its factorization.

10291139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 10291139 is about 3207.9805173972. The cubic root of 10291139 is about 217.5143003765.

The spelling of 10291139 in words is "ten million, two hundred ninety-one thousand, one hundred thirty-nine".