13530152981 has 2 divisors, whose sum is σ = 13530152982. Its totient is φ = 13530152980.

The previous prime is 13530152963. The next prime is 13530153031. The reversal of 13530152981 is 18925103531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9689252356 + 3840900625 = 98434^2 + 61975^2 .

It is a cyclic number.

It is not a de Polignac number, because 13530152981 - 2¹⁴ = 13530136597 is a prime.

It is a super-2 number, since 2×13530152981² (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 (13530152941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765076490 + 6765076491.

It is an arithmetic number, because the mean of its divisors is an integer number (6765076491).

Almost surely, 2^13530152981 is an apocalyptic number.

It is an amenable number.

13530152981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530152981 is an equidigital number, since it uses as much as digits as its factorization.

13530152981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 13530152981 in words is "thirteen billion, five hundred thirty million, one hundred fifty-two thousand, nine hundred eighty-one".