12145246 has 4 divisors (see below), whose sum is σ = 18217872. Its totient is φ = 6072622.

The previous prime is 12145241. The next prime is 12145261. The reversal of 12145246 is 64254121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12145246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145241) 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 as a sum of consecutive naturals, namely, 3036310 + ... + 3036313.

It is an arithmetic number, because the mean of its divisors is an integer number (4554468).

Almost surely, 2^12145246 is an apocalyptic number.

12145246 is a deficient number, since it is larger than the sum of its proper divisors (6072626).

12145246 is an equidigital number, since it uses as much as digits as its factorization.

12145246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072625.

The product of its digits is 1920, while the sum is 25.

The square root of 12145246 is about 3485.0030129112. The cubic root of 12145246 is about 229.8628419791.

Adding to 12145246 its reverse (64254121), we get a palindrome (76399367).

The spelling of 12145246 in words is "twelve million, one hundred forty-five thousand, two hundred forty-six".