13001345 has 16 divisors (see below), whose sum is σ = 18880128. Its totient is φ = 8390400.

The previous prime is 13001341. The next prime is 13001347. The reversal of 13001345 is 54310031.

It is not a de Polignac number, because 13001345 - 2² = 13001341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13001341) 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, 10331 + ... + 11520.

It is an arithmetic number, because the mean of its divisors is an integer number (1180008).

Almost surely, 2^13001345 is an apocalyptic number.

It is an amenable number.

13001345 is a deficient number, since it is larger than the sum of its proper divisors (5878783).

13001345 is a wasteful number, since it uses less digits than its factorization.

13001345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21880.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13001345 is about 3605.7377885809. The cubic root of 13001345 is about 235.1415775826.

Adding to 13001345 its reverse (54310031), we get a palindrome (67311376).

It can be divided in two parts, 130013 and 45, that multiplied together give a palindrome (5850585).

The spelling of 13001345 in words is "thirteen million, one thousand, three hundred forty-five".