12145601 has 4 divisors (see below), whose sum is σ = 13079892. Its totient is φ = 11211312.

The previous prime is 12145597. The next prime is 12145607. The reversal of 12145601 is 10654121.

12145601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10654121 = 17 ⋅626713.

It can be written as a sum of positive squares in 2 ways, for example, as 748225 + 11397376 = 865^2 + 3376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12145601 - 2² = 12145597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145607) 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, 467126 + ... + 467151.

It is an arithmetic number, because the mean of its divisors is an integer number (3269973).

Almost surely, 2^12145601 is an apocalyptic number.

It is an amenable number.

12145601 is a deficient number, since it is larger than the sum of its proper divisors (934291).

12145601 is an equidigital number, since it uses as much as digits as its factorization.

12145601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934290.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12145601 is about 3485.0539450631. The cubic root of 12145601 is about 229.8650815526.

Adding to 12145601 its reverse (10654121), we get a palindrome (22799722).

The spelling of 12145601 in words is "twelve million, one hundred forty-five thousand, six hundred one".