12354145 has 8 divisors (see below), whose sum is σ = 15336360. Its totient is φ = 9542400.

The previous prime is 12354143. The next prime is 12354157. The reversal of 12354145 is 54145321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1830609 + 10523536 = 1353^2 + 3244^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12354145 - 2¹ = 12354143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12354143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42456 + ... + 42745.

It is an arithmetic number, because the mean of its divisors is an integer number (1917045).

Almost surely, 2^12354145 is an apocalyptic number.

It is an amenable number.

12354145 is a deficient number, since it is larger than the sum of its proper divisors (2982215).

12354145 is an equidigital number, since it uses as much as digits as its factorization.

12354145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85235.

The product of its digits is 2400, while the sum is 25.

The square root of 12354145 is about 3514.8463693311. The cubic root of 12354145 is about 231.1732426041.

Adding to 12354145 its reverse (54145321), we get a palindrome (66499466).

The spelling of 12354145 in words is "twelve million, three hundred fifty-four thousand, one hundred forty-five".