12146859 has 6 divisors (see below), whose sum is σ = 17545476. Its totient is φ = 8097900.

The previous prime is 12146843. The next prime is 12146881. The reversal of 12146859 is 95864121.

It is not a de Polignac number, because 12146859 - 2⁴ = 12146843 is a prime.

It is a super-3 number, since 3×12146859³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12146819) 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 5 ways as a sum of consecutive naturals, for example, 674817 + ... + 674834.

It is an arithmetic number, because the mean of its divisors is an integer number (2924246).

Almost surely, 2^12146859 is an apocalyptic number.

12146859 is a deficient number, since it is larger than the sum of its proper divisors (5398617).

12146859 is a wasteful number, since it uses less digits than its factorization.

12146859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349657 (or 1349654 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12146859 is about 3485.2344254010. The cubic root of 12146859 is about 229.8730174928.

The spelling of 12146859 in words is "twelve million, one hundred forty-six thousand, eight hundred fifty-nine".