12152771 has 4 divisors (see below), whose sum is σ = 12160992. Its totient is φ = 12144552.

The previous prime is 12152753. The next prime is 12152783. The reversal of 12152771 is 17725121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 17725121 = 1741 ⋅10181.

It is a cyclic number.

It is not a de Polignac number, because 12152771 - 2¹⁰ = 12151747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12152771.

It is not an unprimeable number, because it can be changed into a prime (12152071) 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, 1211 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (3040248).

Almost surely, 2^12152771 is an apocalyptic number.

12152771 is a deficient number, since it is larger than the sum of its proper divisors (8221).

12152771 is an equidigital number, since it uses as much as digits as its factorization.

12152771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220.

The product of its digits is 980, while the sum is 26.

The square root of 12152771 is about 3486.0824717726. The cubic root of 12152771 is about 229.9103052903.

Adding to 12152771 its reverse (17725121), we get a palindrome (29877892).

The spelling of 12152771 in words is "twelve million, one hundred fifty-two thousand, seven hundred seventy-one".