12509116 has 6 divisors (see below), whose sum is σ = 21890960. Its totient is φ = 6254556.

The previous prime is 12509099. The next prime is 12509117. The reversal of 12509116 is 61190521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12509117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563636 + ... + 1563643.

Almost surely, 2^12509116 is an apocalyptic number.

It is an amenable number.

12509116 is a deficient number, since it is larger than the sum of its proper divisors (9381844).

12509116 is a wasteful number, since it uses less digits than its factorization.

12509116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127283 (or 3127281 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 12509116 is about 3536.8228680555. The cubic root of 12509116 is about 232.1358449367.

Adding to 12509116 its reverse (61190521), we get a palindrome (73699637).

The spelling of 12509116 in words is "twelve million, five hundred nine thousand, one hundred sixteen".