13009455481 has 9 divisors (see below), whose sum is σ = 14301028623. Its totient is φ = 11825637120.

The previous prime is 13009455451. The next prime is 13009455491. The reversal of 13009455481 is 18455490031.

The square root of 13009455481 is 114059.

It is a perfect power (a square), and thus also a powerful number.

13009455481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 715081081 + 12294374400 = 26741^2 + 110880^2 .

It is not a de Polignac number, because 13009455481 - 2⁵ = 13009455449 is a prime.

It is a super-2 number, since 2×13009455481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13009455451) 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 in 8 ways as a sum of consecutive naturals, for example, 1249465 + ... + 1259833.

Almost surely, 2^13009455481 is an apocalyptic number.

13009455481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13009455481 is the 114059-th square number.

13009455481 is the 57030-th centered octagonal number.

It is an amenable number.

13009455481 is a deficient number, since it is larger than the sum of its proper divisors (1291573142).

13009455481 is an frugal number, since it uses more digits than its factorization.

13009455481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20760 (or 10380 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 13009455481 in words is "thirteen billion, nine million, four hundred fifty-five thousand, four hundred eighty-one".