12145414 has 4 divisors (see below), whose sum is σ = 18218124. Its totient is φ = 6072706.

The previous prime is 12145387. The next prime is 12145417. The reversal of 12145414 is 41454121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41454121 = 433 ⋅95737.

It is a super-2 number, since 2×12145414² = 295022162462792, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145417) 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, 3036352 + ... + 3036355.

It is an arithmetic number, because the mean of its divisors is an integer number (4554531).

Almost surely, 2^12145414 is an apocalyptic number.

12145414 is a deficient number, since it is larger than the sum of its proper divisors (6072710).

12145414 is an equidigital number, since it uses as much as digits as its factorization.

12145414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072709.

The product of its digits is 640, while the sum is 22.

The square root of 12145414 is about 3485.0271161068. The cubic root of 12145414 is about 229.8639018390.

Adding to 12145414 its reverse (41454121), we get a palindrome (53599535).

The spelling of 12145414 in words is "twelve million, one hundred forty-five thousand, four hundred fourteen".