13171345 has 16 divisors (see below), whose sum is σ = 18258048. Its totient is φ = 9015040.

The previous prime is 13171343. The next prime is 13171349. The reversal of 13171345 is 54317131.

13171345 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13171345 - 2¹ = 13171343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13171343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6109 + ... + 7978.

It is an arithmetic number, because the mean of its divisors is an integer number (1141128).

Almost surely, 2^13171345 is an apocalyptic number.

It is an amenable number.

13171345 is a deficient number, since it is larger than the sum of its proper divisors (5086703).

13171345 is a wasteful number, since it uses less digits than its factorization.

13171345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14120.

The product of its digits is 1260, while the sum is 25.

The square root of 13171345 is about 3629.2347678264. The cubic root of 13171345 is about 236.1620129036.

Adding to 13171345 its reverse (54317131), we get a palindrome (67488476).

It can be divided in two parts, 1317 and 1345, that added together give a palindrome (2662).

The spelling of 13171345 in words is "thirteen million, one hundred seventy-one thousand, three hundred forty-five".