13381617 has 8 divisors (see below), whose sum is σ = 17872960. Its totient is φ = 8905680.

The previous prime is 13381597. The next prime is 13381633. The reversal of 13381617 is 71618331.

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

It is not a de Polignac number, because 13381617 - 2²² = 9187313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13381117) 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, 1642 + ... + 5427.

It is an arithmetic number, because the mean of its divisors is an integer number (2234120).

Almost surely, 2^13381617 is an apocalyptic number.

It is an amenable number.

13381617 is a deficient number, since it is larger than the sum of its proper divisors (4491343).

13381617 is an equidigital number, since it uses as much as digits as its factorization.

13381617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703.

The product of its digits is 3024, while the sum is 30.

The square root of 13381617 is about 3658.0892553354. The cubic root of 13381617 is about 237.4121085677.

Adding to 13381617 its reverse (71618331), we get a palindrome (84999948).

The spelling of 13381617 in words is "thirteen million, three hundred eighty-one thousand, six hundred seventeen".