13129547633 has 2 divisors, whose sum is σ = 13129547634. Its totient is φ = 13129547632.

The previous prime is 13129547579. The next prime is 13129547657. The reversal of 13129547633 is 33674592131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13083470689 + 46076944 = 114383^2 + 6788^2 .

It is an emirp because it is prime and its reverse (33674592131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13129547633 - 2¹⁴ = 13129531249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13129547833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564773816 + 6564773817.

It is an arithmetic number, because the mean of its divisors is an integer number (6564773817).

Almost surely, 2^13129547633 is an apocalyptic number.

It is an amenable number.

13129547633 is a deficient number, since it is larger than the sum of its proper divisors (1).

13129547633 is an equidigital number, since it uses as much as digits as its factorization.

13129547633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 44.

The spelling of 13129547633 in words is "thirteen billion, one hundred twenty-nine million, five hundred forty-seven thousand, six hundred thirty-three".