12601663 has 2 divisors, whose sum is σ = 12601664. Its totient is φ = 12601662.

The previous prime is 12601657. The next prime is 12601691. The reversal of 12601663 is 36610621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12601663 is a prime.

It is equal to p₈₂₄₉₁₁ and since 12601663 and 824911 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12601363) 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, 6300831 + 6300832.

It is an arithmetic number, because the mean of its divisors is an integer number (6300832).

Almost surely, 2^12601663 is an apocalyptic number.

12601663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12601663 is an equidigital number, since it uses as much as digits as its factorization.

12601663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 12601663 is about 3549.8821107186. The cubic root of 12601663 is about 232.7069141173.

The spelling of 12601663 in words is "twelve million, six hundred one thousand, six hundred sixty-three".