12631243 has 8 divisors (see below), whose sum is σ = 12891312. Its totient is φ = 12374016.

The previous prime is 12631237. The next prime is 12631261. The reversal of 12631243 is 34213621.

12631243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12631243 - 2⁹ = 12630731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12631273) 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, 9771 + ... + 10987.

It is an arithmetic number, because the mean of its divisors is an integer number (1611414).

Almost surely, 2^12631243 is an apocalyptic number.

12631243 is a deficient number, since it is larger than the sum of its proper divisors (260069).

12631243 is a wasteful number, since it uses less digits than its factorization.

12631243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its digits is 864, while the sum is 22.

The square root of 12631243 is about 3554.0460042042. The cubic root of 12631243 is about 232.8888502013. Note that the first 4 decimals are identical.

Adding to 12631243 its reverse (34213621), we get a palindrome (46844864).

The spelling of 12631243 in words is "twelve million, six hundred thirty-one thousand, two hundred forty-three".