12013005 has 16 divisors (see below), whose sum is σ = 19454400. Its totient is φ = 6329088.

The previous prime is 12012971. The next prime is 12013009. The reversal of 12013005 is 50031021.

It is not a de Polignac number, because 12013005 - 2⁶ = 12012941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580 + ... + 6069.

It is an arithmetic number, because the mean of its divisors is an integer number (1215900).

Almost surely, 2^12013005 is an apocalyptic number.

12013005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12013005 is a deficient number, since it is larger than the sum of its proper divisors (7441395).

12013005 is an equidigital number, since it uses as much as digits as its factorization.

12013005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 12013005 is about 3465.9782168963. The cubic root of 12013005 is about 229.0255242553.

Adding to 12013005 its reverse (50031021), we get a palindrome (62044026).

The spelling of 12013005 in words is "twelve million, thirteen thousand, five".