12571245 has 24 divisors (see below), whose sum is σ = 23073336. Its totient is φ = 6309888.

The previous prime is 12571241. The next prime is 12571261. The reversal of 12571245 is 54217521.

It can be written as a sum of positive squares in 4 ways, for example, as 6563844 + 6007401 = 2562^2 + 2451^2 .

It is not a de Polignac number, because 12571245 - 2² = 12571241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12571241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7452 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (961389).

Almost surely, 2^12571245 is an apocalyptic number.

12571245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12571245 is a deficient number, since it is larger than the sum of its proper divisors (10502091).

12571245 is a wasteful number, since it uses less digits than its factorization.

12571245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16461 (or 16458 counting only the distinct ones).

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

The square root of 12571245 is about 3545.5951545545. The cubic root of 12571245 is about 232.5195266292.

Adding to 12571245 its reverse (54217521), we get a palindrome (66788766).

The spelling of 12571245 in words is "twelve million, five hundred seventy-one thousand, two hundred forty-five".