13529081 has 2 divisors, whose sum is σ = 13529082. Its totient is φ = 13529080.

The previous prime is 13529077. The next prime is 13529101. The reversal of 13529081 is 18092531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7203856 + 6325225 = 2684^2 + 2515^2 .

It is an emirp because it is prime and its reverse (18092531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13529081 - 2² = 13529077 is a prime.

It is a super-2 number, since 2×13529081² = 366072065409122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13529011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6764540 + 6764541.

It is an arithmetic number, because the mean of its divisors is an integer number (6764541).

Almost surely, 2^13529081 is an apocalyptic number.

It is an amenable number.

13529081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13529081 is an equidigital number, since it uses as much as digits as its factorization.

13529081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 13529081 is about 3678.1899080934. The cubic root of 13529081 is about 238.2810100254.

The spelling of 13529081 in words is "thirteen million, five hundred twenty-nine thousand, eighty-one".