13015245 has 16 divisors (see below), whose sum is σ = 21333312. Its totient is φ = 6771840.

The previous prime is 13015241. The next prime is 13015267. The reversal of 13015245 is 54251031.

13015245 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13015245 - 2² = 13015241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015241) 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, 9967 + ... + 11196.

It is an arithmetic number, because the mean of its divisors is an integer number (1333332).

Almost surely, 2^13015245 is an apocalyptic number.

13015245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13015245 is a deficient number, since it is larger than the sum of its proper divisors (8318067).

13015245 is a wasteful number, since it uses less digits than its factorization.

13015245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13015245 is about 3607.6647571525. The cubic root of 13015245 is about 235.2253459369.

Adding to 13015245 its reverse (54251031), we get a palindrome (67266276).

The spelling of 13015245 in words is "thirteen million, fifteen thousand, two hundred forty-five".