12690263 has 2 divisors, whose sum is σ = 12690264. Its totient is φ = 12690262.

The previous prime is 12690259. The next prime is 12690277. The reversal of 12690263 is 36209621.

12690263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12690263 - 2² = 12690259 is a prime.

It is a super-2 number, since 2×12690263² = 322085550018338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12690463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6345131 + 6345132.

It is an arithmetic number, because the mean of its divisors is an integer number (6345132).

Almost surely, 2^12690263 is an apocalyptic number.

12690263 is a deficient number, since it is larger than the sum of its proper divisors (1).

12690263 is an equidigital number, since it uses as much as digits as its factorization.

12690263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 12690263 is about 3562.3395402460. The cubic root of 12690263 is about 233.2510142722.

Adding to 12690263 its reverse (36209621), we get a palindrome (48899884).

The spelling of 12690263 in words is "twelve million, six hundred ninety thousand, two hundred sixty-three".