12632013 has 6 divisors (see below), whose sum is σ = 18246254. Its totient is φ = 8421336.

The previous prime is 12631999. The next prime is 12632041. The reversal of 12632013 is 31023621.

It can be written as a sum of positive squares in only one way, i.e., 12404484 + 227529 = 3522^2 + 477^2 .

It is not a de Polignac number, because 12632013 - 2⁸ = 12631757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12632413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701770 + ... + 701787.

Almost surely, 2^12632013 is an apocalyptic number.

It is an amenable number.

12632013 is a deficient number, since it is larger than the sum of its proper divisors (5614241).

12632013 is a wasteful number, since it uses less digits than its factorization.

12632013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403563 (or 1403560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12632013 is about 3554.1543297949. The cubic root of 12632013 is about 232.8935824030.

Adding to 12632013 its reverse (31023621), we get a palindrome (43655634).

It can be divided in two parts, 12 and 632013, that added together give a square (632025 = 795²).

The spelling of 12632013 in words is "twelve million, six hundred thirty-two thousand, thirteen".