13445345 has 8 divisors (see below), whose sum is σ = 16219176. Its totient is φ = 10699776.

The previous prime is 13445321. The next prime is 13445347. The reversal of 13445345 is 54354431.

It can be written as a sum of positive squares in 4 ways, for example, as 3717184 + 9728161 = 1928^2 + 3119^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13445345 - 2⁶ = 13445281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13445347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6002 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (2027397).

Almost surely, 2^13445345 is an apocalyptic number.

It is an amenable number.

13445345 is a deficient number, since it is larger than the sum of its proper divisors (2773831).

13445345 is a wasteful number, since it uses less digits than its factorization.

13445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14131.

The product of its digits is 14400, while the sum is 29.

The square root of 13445345 is about 3666.7894676406. The cubic root of 13445345 is about 237.7883920512.

Adding to 13445345 its reverse (54354431), we get a palindrome (67799776).

The spelling of 13445345 in words is "thirteen million, four hundred forty-five thousand, three hundred forty-five".