613139399 has 2 divisors, whose sum is σ = 613139400. Its totient is φ = 613139398.

The previous prime is 613139383. The next prime is 613139407. The reversal of 613139399 is 993931316.

613139399 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 not a de Polignac number, because 613139399 - 2⁴ = 613139383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613139699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306569699 + 306569700.

It is an arithmetic number, because the mean of its divisors is an integer number (306569700).

Almost surely, 2^613139399 is an apocalyptic number.

613139399 is a deficient number, since it is larger than the sum of its proper divisors (1).

613139399 is an equidigital number, since it uses as much as digits as its factorization.

613139399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 44.

The square root of 613139399 is about 24761.6517825447. The cubic root of 613139399 is about 849.5450386483.

The spelling of 613139399 in words is "six hundred thirteen million, one hundred thirty-nine thousand, three hundred ninety-nine".