13180065 has 32 divisors (see below), whose sum is σ = 22377600. Its totient is φ = 6612480.

The previous prime is 13180061. The next prime is 13180067. The reversal of 13180065 is 56008131.

It is not a de Polignac number, because 13180065 - 2² = 13180061 is a prime.

It is a super-2 number, since 2×13180065² = 347428226808450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13180061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17466 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (699300).

Almost surely, 2^13180065 is an apocalyptic number.

13180065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13180065 is a deficient number, since it is larger than the sum of its proper divisors (9197535).

13180065 is a wasteful number, since it uses less digits than its factorization.

13180065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 13180065 is about 3630.4359242383. The cubic root of 13180065 is about 236.2141178952.

Adding to 13180065 its reverse (56008131), we get a palindrome (69188196).

The spelling of 13180065 in words is "thirteen million, one hundred eighty thousand, sixty-five".