12057017 has 4 divisors (see below), whose sum is σ = 13779456. Its totient is φ = 10334580.

The previous prime is 12057013. The next prime is 12057041. The reversal of 12057017 is 71075021.

It is a happy number.

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 not a de Polignac number, because 12057017 - 2² = 12057013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12056983 and 12057001.

It is not an unprimeable number, because it can be changed into a prime (12057013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861209 + ... + 861222.

It is an arithmetic number, because the mean of its divisors is an integer number (3444864).

Almost surely, 2^12057017 is an apocalyptic number.

It is an amenable number.

12057017 is a deficient number, since it is larger than the sum of its proper divisors (1722439).

12057017 is an equidigital number, since it uses as much as digits as its factorization.

12057017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722438.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 12057017 is about 3472.3215576902. The cubic root of 12057017 is about 229.3048766878.

The spelling of 12057017 in words is "twelve million, fifty-seven thousand, seventeen".