13147538269 has 2 divisors, whose sum is σ = 13147538270. Its totient is φ = 13147538268.

The previous prime is 13147538233. The next prime is 13147538291. The reversal of 13147538269 is 96283574131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13147374244 + 164025 = 114662^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 13147538269 - 2⁷ = 13147538141 is a prime.

It is a super-2 number, since 2×13147538269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13147538219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6573769134 + 6573769135.

It is an arithmetic number, because the mean of its divisors is an integer number (6573769135).

Almost surely, 2^13147538269 is an apocalyptic number.

It is an amenable number.

13147538269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13147538269 is an equidigital number, since it uses as much as digits as its factorization.

13147538269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

It can be divided in two parts, 131475 and 38269, that added together give a square (169744 = 412²).

The spelling of 13147538269 in words is "thirteen billion, one hundred forty-seven million, five hundred thirty-eight thousand, two hundred sixty-nine".