12001517 has 4 divisors (see below), whose sum is σ = 13092576. Its totient is φ = 10910460.

The previous prime is 12001511. The next prime is 12001523. The reversal of 12001517 is 71510021.

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 an interprime number because it is at equal distance from previous prime (12001511) and next prime (12001523).

It is not a de Polignac number, because 12001517 - 2⁶ = 12001453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001495 and 12001504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545513 + ... + 545534.

It is an arithmetic number, because the mean of its divisors is an integer number (3273144).

Almost surely, 2^12001517 is an apocalyptic number.

It is an amenable number.

12001517 is a deficient number, since it is larger than the sum of its proper divisors (1091059).

12001517 is a wasteful number, since it uses less digits than its factorization.

12001517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091058.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 12001517 is about 3464.3205683077. The cubic root of 12001517 is about 228.9524955014.

Adding to 12001517 its reverse (71510021), we get a palindrome (83511538).

The spelling of 12001517 in words is "twelve million, one thousand, five hundred seventeen".