13089481 has 2 divisors, whose sum is σ = 13089482. Its totient is φ = 13089480.

The previous prime is 13089467. The next prime is 13089493. The reversal of 13089481 is 18498031.

It is a happy number.

13089481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 2298256 = 3285^2 + 1516^2 .

It is an emirp because it is prime and its reverse (18498031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13089481 - 2⁹ = 13088969 is a prime.

It is a super-2 number, since 2×13089481² = 342669025698722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13089451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6544740 + 6544741.

It is an arithmetic number, because the mean of its divisors is an integer number (6544741).

Almost surely, 2^13089481 is an apocalyptic number.

It is an amenable number.

13089481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13089481 is an equidigital number, since it uses as much as digits as its factorization.

13089481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13089481 is about 3617.9387778126. The cubic root of 13089481 is about 235.6717223073.

The spelling of 13089481 in words is "thirteen million, eighty-nine thousand, four hundred eighty-one".