12510117 has 12 divisors (see below), whose sum is σ = 18231564. Its totient is φ = 8265600.

The previous prime is 12510109. The next prime is 12510133. The reversal of 12510117 is 71101521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1758276 + 10751841 = 1326^2 + 3279^2 .

It is not a de Polignac number, because 12510117 - 2³ = 12510109 is a prime.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12510117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12510167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5134 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (1519297).

Almost surely, 2^12510117 is an apocalyptic number.

It is an amenable number.

12510117 is a deficient number, since it is larger than the sum of its proper divisors (5721447).

12510117 is a wasteful number, since it uses less digits than its factorization.

12510117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420 (or 12417 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 12510117 is about 3536.9643764109. The cubic root of 12510117 is about 232.1420367353.

Adding to 12510117 its reverse (71101521), we get a palindrome (83611638).

The spelling of 12510117 in words is "twelve million, five hundred ten thousand, one hundred seventeen".