12517901 has 4 divisors (see below), whose sum is σ = 13655904. Its totient is φ = 11379900.

The previous prime is 12517889. The next prime is 12517909. The reversal of 12517901 is 10971521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12517901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517909) 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 in 3 ways as a sum of consecutive naturals, for example, 568985 + ... + 569006.

It is an arithmetic number, because the mean of its divisors is an integer number (3413976).

Almost surely, 2^12517901 is an apocalyptic number.

12517901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12517901 is a deficient number, since it is larger than the sum of its proper divisors (1138003).

12517901 is a wasteful number, since it uses less digits than its factorization.

12517901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138002.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12517901 is about 3538.0645839216. The cubic root of 12517901 is about 232.1901742804.

The spelling of 12517901 in words is "twelve million, five hundred seventeen thousand, nine hundred one".