12285517 has 8 divisors (see below), whose sum is σ = 13025792. Its totient is φ = 11566800.

The previous prime is 12285503. The next prime is 12285521. The reversal of 12285517 is 71558221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12285517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4209 + ... + 6502.

It is an arithmetic number, because the mean of its divisors is an integer number (1628224).

Almost surely, 2^12285517 is an apocalyptic number.

It is an amenable number.

12285517 is a deficient number, since it is larger than the sum of its proper divisors (740275).

12285517 is a wasteful number, since it uses less digits than its factorization.

12285517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10779.

The product of its digits is 5600, while the sum is 31.

The square root of 12285517 is about 3505.0701847467. The cubic root of 12285517 is about 230.7443872087.

The spelling of 12285517 in words is "twelve million, two hundred eighty-five thousand, five hundred seventeen".