12517480 has 16 divisors (see below), whose sum is σ = 28164420. Its totient is φ = 5006976.

The previous prime is 12517403. The next prime is 12517481. The reversal of 12517480 is 8471521.

It can be written as a sum of positive squares in 2 ways, for example, as 12517444 + 36 = 3538^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (12517481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156429 + ... + 156508.

Almost surely, 2^12517480 is an apocalyptic number.

12517480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12517480 is an abundant number, since it is smaller than the sum of its proper divisors (15646940).

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

12517480 is a wasteful number, since it uses less digits than its factorization.

12517480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312948 (or 312944 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12517480 is about 3538.0050876165. The cubic root of 12517480 is about 232.1875712572.

The spelling of 12517480 in words is "twelve million, five hundred seventeen thousand, four hundred eighty".