12517308 has 24 divisors (see below), whose sum is σ = 32452560. Its totient is φ = 4172400.

The previous prime is 12517301. The next prime is 12517319. The reversal of 12517308 is 80371521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57843 + ... + 58058.

It is an arithmetic number, because the mean of its divisors is an integer number (1352190).

Almost surely, 2^12517308 is an apocalyptic number.

12517308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12517308 is an abundant number, since it is smaller than the sum of its proper divisors (19935252).

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

12517308 is a wasteful number, since it uses less digits than its factorization.

12517308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115914 (or 115906 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12517308 is about 3537.9807800495. The cubic root of 12517308 is about 232.1865077725.

Adding to 12517308 its reverse (80371521), we get a palindrome (92888829).

The spelling of 12517308 in words is "twelve million, five hundred seventeen thousand, three hundred eight".