12681503 has 2 divisors, whose sum is σ = 12681504. Its totient is φ = 12681502.

The previous prime is 12681499. The next prime is 12681509. The reversal of 12681503 is 30518621.

12681503 is nontrivially palindromic in base 7.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12681503 - 2² = 12681499 is a prime.

It is a super-3 number, since 3×12681503³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12681509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340751 + 6340752.

It is an arithmetic number, because the mean of its divisors is an integer number (6340752).

Almost surely, 2^12681503 is an apocalyptic number.

12681503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12681503 is an equidigital number, since it uses as much as digits as its factorization.

12681503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12681503 is about 3561.1097989250. The cubic root of 12681503 is about 233.1973314022.

The spelling of 12681503 in words is "twelve million, six hundred eighty-one thousand, five hundred three".