12531473 has 2 divisors, whose sum is σ = 12531474. Its totient is φ = 12531472.

The previous prime is 12531461. The next prime is 12531511. The reversal of 12531473 is 37413521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9042049 + 3489424 = 3007^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 12531473 - 2¹² = 12527377 is a prime.

It is not a weakly prime, because it can be changed into another prime (12531443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6265736 + 6265737.

It is an arithmetic number, because the mean of its divisors is an integer number (6265737).

Almost surely, 2^12531473 is an apocalyptic number.

It is an amenable number.

12531473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12531473 is an equidigital number, since it uses as much as digits as its factorization.

12531473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 12531473 is about 3539.9820621014. The cubic root of 12531473 is about 232.2740580681.

Adding to 12531473 its reverse (37413521), we get a palindrome (49944994).

The spelling of 12531473 in words is "twelve million, five hundred thirty-one thousand, four hundred seventy-three".