12003261 has 8 divisors (see below), whose sum is σ = 16039680. Its totient is φ = 7984512.

The previous prime is 12003247. The next prime is 12003287. The reversal of 12003261 is 16230021.

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

It is not a de Polignac number, because 12003261 - 2⁶ = 12003197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12003261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003221) 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, 2740 + ... + 5613.

It is an arithmetic number, because the mean of its divisors is an integer number (2004960).

Almost surely, 2^12003261 is an apocalyptic number.

It is an amenable number.

12003261 is a deficient number, since it is larger than the sum of its proper divisors (4036419).

12003261 is an equidigital number, since it uses as much as digits as its factorization.

12003261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12003261 is about 3464.5722679719. The cubic root of 12003261 is about 228.9635850388.

Adding to 12003261 its reverse (16230021), we get a palindrome (28233282).

The spelling of 12003261 in words is "twelve million, three thousand, two hundred sixty-one".