12632146 has 4 divisors (see below), whose sum is σ = 18948222. Its totient is φ = 6316072.

The previous prime is 12632117. The next prime is 12632149. The reversal of 12632146 is 64123621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64123621 = 43 ⋅1491247.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 5929225 = 2589^2 + 2435^2 .

It is a super-2 number, since 2×12632146² = 319142225130632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12632146.

It is not an unprimeable number, because it can be changed into a prime (12632149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3158035 + ... + 3158038.

Almost surely, 2^12632146 is an apocalyptic number.

12632146 is a deficient number, since it is larger than the sum of its proper divisors (6316076).

12632146 is an equidigital number, since it uses as much as digits as its factorization.

12632146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316075.

The product of its digits is 1728, while the sum is 25.

The square root of 12632146 is about 3554.1730402444. The cubic root of 12632146 is about 232.8943997639.

Adding to 12632146 its reverse (64123621), we get a palindrome (76755767).

The spelling of 12632146 in words is "twelve million, six hundred thirty-two thousand, one hundred forty-six".