12019061 has 4 divisors (see below), whose sum is σ = 12026124. Its totient is φ = 12012000.

The previous prime is 12019009. The next prime is 12019069. The reversal of 12019061 is 16091021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3204100 + 8814961 = 1790^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 12019061 - 2⁶ = 12018997 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 (12019069) 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, 761 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (3006531).

Almost surely, 2^12019061 is an apocalyptic number.

It is an amenable number.

12019061 is a deficient number, since it is larger than the sum of its proper divisors (7063).

12019061 is an equidigital number, since it uses as much as digits as its factorization.

12019061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 12019061 is about 3466.8517418546. The cubic root of 12019061 is about 229.0640032640.

The spelling of 12019061 in words is "twelve million, nineteen thousand, sixty-one".