613087765133 has 2 divisors, whose sum is σ = 613087765134. Its totient is φ = 613087765132.

The previous prime is 613087765067. The next prime is 613087765139. The reversal of 613087765133 is 331567780316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602700690244 + 10387074889 = 776338^2 + 101917^2 .

It is a cyclic number.

It is not a de Polignac number, because 613087765133 - 2¹² = 613087761037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613087765139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306543882566 + 306543882567.

It is an arithmetic number, because the mean of its divisors is an integer number (306543882567).

Almost surely, 2^613087765133 is an apocalyptic number.

It is an amenable number.

613087765133 is a deficient number, since it is larger than the sum of its proper divisors (1).

613087765133 is an equidigital number, since it uses as much as digits as its factorization.

613087765133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 613087765133 in words is "six hundred thirteen billion, eighty-seven million, seven hundred sixty-five thousand, one hundred thirty-three".