12631375 has 8 divisors (see below), whose sum is σ = 15764112. Its totient is φ = 10105000.

The previous prime is 12631373. The next prime is 12631387. The reversal of 12631375 is 57313621.

It is not a de Polignac number, because 12631375 - 2¹ = 12631373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50401 + ... + 50650.

It is an arithmetic number, because the mean of its divisors is an integer number (1970514).

Almost surely, 2^12631375 is an apocalyptic number.

12631375 is a deficient number, since it is larger than the sum of its proper divisors (3132737).

12631375 is an equidigital number, since it uses as much as digits as its factorization.

12631375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101066 (or 101056 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 12631375 is about 3554.0645745400. The cubic root of 12631375 is about 232.8896614495.

Adding to 12631375 its reverse (57313621), we get a palindrome (69944996).

The spelling of 12631375 in words is "twelve million, six hundred thirty-one thousand, three hundred seventy-five".