13213465 has 4 divisors (see below), whose sum is σ = 15856164. Its totient is φ = 10570768.

The previous prime is 13213451. The next prime is 13213481. The reversal of 13213465 is 56431231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56431231 = 1871 ⋅30161.

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 9418761 = 1948^2 + 3069^2 .

It is a cyclic number.

It is not a de Polignac number, because 13213465 - 2¹³ = 13205273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321342 + ... + 1321351.

It is an arithmetic number, because the mean of its divisors is an integer number (3964041).

Almost surely, 2^13213465 is an apocalyptic number.

It is an amenable number.

13213465 is a deficient number, since it is larger than the sum of its proper divisors (2642699).

13213465 is an equidigital number, since it uses as much as digits as its factorization.

13213465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642698.

The product of its digits is 2160, while the sum is 25.

The square root of 13213465 is about 3635.0330122297. The cubic root of 13213465 is about 236.4134820238.

Adding to 13213465 its reverse (56431231), we get a palindrome (69644696).

The spelling of 13213465 in words is "thirteen million, two hundred thirteen thousand, four hundred sixty-five".