12152243 has 4 divisors (see below), whose sum is σ = 12480720. Its totient is φ = 11823768.

The previous prime is 12152233. The next prime is 12152251. The reversal of 12152243 is 34225121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12152243 - 2⁴ = 12152227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12152213) 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, 164183 + ... + 164256.

It is an arithmetic number, because the mean of its divisors is an integer number (3120180).

Almost surely, 2^12152243 is an apocalyptic number.

12152243 is a deficient number, since it is larger than the sum of its proper divisors (328477).

12152243 is an equidigital number, since it uses as much as digits as its factorization.

12152243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328476.

The product of its digits is 480, while the sum is 20.

The square root of 12152243 is about 3486.0067412442. The cubic root of 12152243 is about 229.9069756135.

Adding to 12152243 its reverse (34225121), we get a palindrome (46377364).

It can be divided in two parts, 12 and 152243, that multiplied together give a triangular number (1826916 = T₁₉₁₁).

The spelling of 12152243 in words is "twelve million, one hundred fifty-two thousand, two hundred forty-three".