13457482581 has 8 divisors (see below), whose sum is σ = 17944299360. Its totient is φ = 8971160432.

The previous prime is 13457482579. The next prime is 13457482589. The reversal of 13457482581 is 18528475431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13457482581 - 2¹ = 13457482579 is a prime.

It is a super-2 number, since 2×13457482581² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13457482581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457482589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54675 + ... + 172928.

It is an arithmetic number, because the mean of its divisors is an integer number (2243037420).

Almost surely, 2^13457482581 is an apocalyptic number.

It is an amenable number.

13457482581 is a deficient number, since it is larger than the sum of its proper divisors (4486816779).

13457482581 is a wasteful number, since it uses less digits than its factorization.

13457482581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247315.

The product of its digits is 1075200, while the sum is 48.

The spelling of 13457482581 in words is "thirteen billion, four hundred fifty-seven million, four hundred eighty-two thousand, five hundred eighty-one".