12630146 has 4 divisors (see below), whose sum is σ = 18945222. Its totient is φ = 6315072.

The previous prime is 12630143. The next prime is 12630161. The reversal of 12630146 is 64103621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64103621 = 1901 ⋅33721.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 105625 = 3539^2 + 325^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12630143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157535 + ... + 3157538.

Almost surely, 2^12630146 is an apocalyptic number.

12630146 is a deficient number, since it is larger than the sum of its proper divisors (6315076).

12630146 is an equidigital number, since it uses as much as digits as its factorization.

12630146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315075.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12630146 is about 3553.8916697052. The cubic root of 12630146 is about 232.8821080180.

Adding to 12630146 its reverse (64103621), we get a palindrome (76733767).

The spelling of 12630146 in words is "twelve million, six hundred thirty thousand, one hundred forty-six".