12715245 has 32 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 6704640.

The previous prime is 12715211. The next prime is 12715249. The reversal of 12715245 is 54251721.

It is not a de Polignac number, because 12715245 - 2⁹ = 12714733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12715249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12610 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^12715245 is an apocalyptic number.

12715245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12715245 is a deficient number, since it is larger than the sum of its proper divisors (10146195).

12715245 is an equidigital number, since it uses as much as digits as its factorization.

12715245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1076 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 12715245 is about 3565.8442198167. The cubic root of 12715245 is about 233.4039729434.

12715245 divided by its sum of digits (27) gives a triangular number (470935 = T₉₇₀).

Adding to 12715245 its reverse (54251721), we get a palindrome (66966966).

The spelling of 12715245 in words is "twelve million, seven hundred fifteen thousand, two hundred forty-five".