12517403 has 2 divisors, whose sum is σ = 12517404. Its totient is φ = 12517402.

The previous prime is 12517399. The next prime is 12517481. The reversal of 12517403 is 30471521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12517403 - 2² = 12517399 is a prime.

It is not a weakly prime, because it can be changed into another prime (12517493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258701 + 6258702.

It is an arithmetic number, because the mean of its divisors is an integer number (6258702).

Almost surely, 2^12517403 is an apocalyptic number.

12517403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12517403 is an equidigital number, since it uses as much as digits as its factorization.

12517403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12517403 is about 3537.9942057612. The cubic root of 12517403 is about 232.1870951636.

Adding to 12517403 its reverse (30471521), we get a palindrome (42988924).

The spelling of 12517403 in words is "twelve million, five hundred seventeen thousand, four hundred three".