13511345 has 16 divisors (see below), whose sum is σ = 17590608. Its totient is φ = 9922560.

The previous prime is 13511339. The next prime is 13511353. The reversal of 13511345 is 54311531.

13511345 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 can be written as a sum of positive squares in 8 ways, for example, as 1449616 + 12061729 = 1204^2 + 3473^2 .

It is not a de Polignac number, because 13511345 - 2¹⁴ = 13494961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13511345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (1099413).

Almost surely, 2^13511345 is an apocalyptic number.

It is an amenable number.

13511345 is a deficient number, since it is larger than the sum of its proper divisors (4079263).

13511345 is a wasteful number, since it uses less digits than its factorization.

13511345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940.

The product of its digits is 900, while the sum is 23.

The square root of 13511345 is about 3675.7781489094. The cubic root of 13511345 is about 238.1768393601.

Adding to 13511345 its reverse (54311531), we get a palindrome (67822876).

The spelling of 13511345 in words is "thirteen million, five hundred eleven thousand, three hundred forty-five".