12631573 has 2 divisors, whose sum is σ = 12631574. Its totient is φ = 12631572.

The previous prime is 12631529. The next prime is 12631583. The reversal of 12631573 is 37513621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 191844 = 3527^2 + 438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12631573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12631583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315786 + 6315787.

It is an arithmetic number, because the mean of its divisors is an integer number (6315787).

Almost surely, 2^12631573 is an apocalyptic number.

It is an amenable number.

12631573 is a deficient number, since it is larger than the sum of its proper divisors (1).

12631573 is an equidigital number, since it uses as much as digits as its factorization.

12631573 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12631573 is about 3554.0924298617. The cubic root of 12631573 is about 232.8908783113.

The spelling of 12631573 in words is "twelve million, six hundred thirty-one thousand, five hundred seventy-three".