12097771 has 4 divisors (see below), whose sum is σ = 13826032. Its totient is φ = 10369512.

The previous prime is 12097759. The next prime is 12097783. The reversal of 12097771 is 17779021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17779021 = 13 ⋅1367617.

It is an interprime number because it is at equal distance from previous prime (12097759) and next prime (12097783).

It is a cyclic number.

It is not a de Polignac number, because 12097771 - 2⁷ = 12097643 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (12097751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864120 + ... + 864133.

It is an arithmetic number, because the mean of its divisors is an integer number (3456508).

Almost surely, 2^12097771 is an apocalyptic number.

12097771 is a deficient number, since it is larger than the sum of its proper divisors (1728261).

12097771 is an equidigital number, since it uses as much as digits as its factorization.

12097771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728260.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 12097771 is about 3478.1850152055. The cubic root of 12097771 is about 229.5629444320.

The spelling of 12097771 in words is "twelve million, ninety-seven thousand, seven hundred seventy-one".