13111245 has 48 divisors (see below), whose sum is σ = 26282880. Its totient is φ = 5922432.

The previous prime is 13111237. The next prime is 13111271. The reversal of 13111245 is 54211131.

13111245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13111245 - 2³ = 13111237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33511 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (547560).

Almost surely, 2^13111245 is an apocalyptic number.

13111245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13111245 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

13111245 is a wasteful number, since it uses less digits than its factorization.

13111245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 511 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 13111245 is about 3620.9453185598. The cubic root of 13111245 is about 235.8022678250.

Adding to 13111245 its reverse (54211131), we get a palindrome (67322376).

It can be divided in two parts, 1311 and 1245, that added together give a triangular number (2556 = T₇₁).

The spelling of 13111245 in words is "thirteen million, one hundred eleven thousand, two hundred forty-five".