12509264 has 20 divisors (see below), whose sum is σ = 24829140. Its totient is φ = 6101760.

The previous prime is 12509251. The next prime is 12509267. The reversal of 12509264 is 46290521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 5326864 = 2680^2 + 2308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12509267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8879 + ... + 10190.

It is an arithmetic number, because the mean of its divisors is an integer number (1241457).

Almost surely, 2^12509264 is an apocalyptic number.

It is an amenable number.

12509264 is a deficient number, since it is larger than the sum of its proper divisors (12319876).

12509264 is a wasteful number, since it uses less digits than its factorization.

12509264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19118 (or 19112 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12509264 is about 3536.8437907264. The cubic root of 12509264 is about 232.1367604282.

Adding to 12509264 its reverse (46290521), we get a palindrome (58799785).

The spelling of 12509264 in words is "twelve million, five hundred nine thousand, two hundred sixty-four".