58139309 has 2 divisors, whose sum is σ = 58139310. Its totient is φ = 58139308.

The previous prime is 58139299. The next prime is 58139359. The reversal of 58139309 is 90393185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55547209 + 2592100 = 7453^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 58139309 - 2¹² = 58135213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58139359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29069654 + 29069655.

It is an arithmetic number, because the mean of its divisors is an integer number (29069655).

Almost surely, 2^58139309 is an apocalyptic number.

It is an amenable number.

58139309 is a deficient number, since it is larger than the sum of its proper divisors (1).

58139309 is an equidigital number, since it uses as much as digits as its factorization.

58139309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 58139309 is about 7624.9137044297. The cubic root of 58139309 is about 387.3973288863.

The spelling of 58139309 in words is "fifty-eight million, one hundred thirty-nine thousand, three hundred nine".