12003959 has 4 divisors (see below), whose sum is σ = 13095240. Its totient is φ = 10912680.

The previous prime is 12003911. The next prime is 12003961. The reversal of 12003959 is 95930021.

12003959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95930021 = 11 ⋅8720911.

It is a cyclic number.

It is not a de Polignac number, because 12003959 - 2⁸ = 12003703 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 (12003359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545624 + ... + 545645.

It is an arithmetic number, because the mean of its divisors is an integer number (3273810).

Almost surely, 2^12003959 is an apocalyptic number.

12003959 is a deficient number, since it is larger than the sum of its proper divisors (1091281).

12003959 is a wasteful number, since it uses less digits than its factorization.

12003959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091280.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 12003959 is about 3464.6730004432. The cubic root of 12003959 is about 228.9680230962.

The spelling of 12003959 in words is "twelve million, three thousand, nine hundred fifty-nine".