13318481 has 8 divisors (see below), whose sum is σ = 14884128. Its totient is φ = 11812000.

The previous prime is 13318477. The next prime is 13318493. The reversal of 13318481 is 18481331.

13318481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13318481 - 2² = 13318477 is a prime.

It is a super-2 number, since 2×13318481² = 354763872294722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13318421) 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, 14315 + ... + 15216.

It is an arithmetic number, because the mean of its divisors is an integer number (1860516).

Almost surely, 2^13318481 is an apocalyptic number.

13318481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13318481 is a deficient number, since it is larger than the sum of its proper divisors (1565647).

13318481 is a wasteful number, since it uses less digits than its factorization.

13318481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29583.

The product of its digits is 2304, while the sum is 29.

The square root of 13318481 is about 3649.4494105276. The cubic root of 13318481 is about 237.0381406449.

It can be divided in two parts, 1331 and 8481, that multiplied together give a palindrome (11288211).

The spelling of 13318481 in words is "thirteen million, three hundred eighteen thousand, four hundred eighty-one".