12042769 has 2 divisors, whose sum is σ = 12042770. Its totient is φ = 12042768.

The previous prime is 12042761. The next prime is 12042809. The reversal of 12042769 is 96724021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6225025 + 5817744 = 2495^2 + 2412^2 .

It is an emirp because it is prime and its reverse (96724021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12042769 - 2³ = 12042761 is a prime.

It is a super-2 number, since 2×12042769² = 290056570374722, which contains 22 as substring.

It is equal to p₇₉₀₆₇₂ and since 12042769 and 790672 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12042769.

It is not a weakly prime, because it can be changed into another prime (12042761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021384 + 6021385.

It is an arithmetic number, because the mean of its divisors is an integer number (6021385).

Almost surely, 2^12042769 is an apocalyptic number.

It is an amenable number.

12042769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042769 is an equidigital number, since it uses as much as digits as its factorization.

12042769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 12042769 is about 3470.2692979076. The cubic root of 12042769 is about 229.2145164803.

The spelling of 12042769 in words is "twelve million, forty-two thousand, seven hundred sixty-nine".