12507276 has 12 divisors (see below), whose sum is σ = 29183672. Its totient is φ = 4169088.

The previous prime is 12507269. The next prime is 12507317. The reversal of 12507276 is 67270521.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521125 + ... + 521148.

Almost surely, 2^12507276 is an apocalyptic number.

It is an amenable number.

12507276 is an abundant number, since it is smaller than the sum of its proper divisors (16676396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12507276 is a wasteful number, since it uses less digits than its factorization.

12507276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042280 (or 1042278 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 12507276 is about 3536.5627380269. The cubic root of 12507276 is about 232.1244625470.

Adding to 12507276 its reverse (67270521), we get a palindrome (79777797).

The spelling of 12507276 in words is "twelve million, five hundred seven thousand, two hundred seventy-six".