14978563 has 2 divisors, whose sum is σ = 14978564. Its totient is φ = 14978562.

The previous prime is 14978539. The next prime is 14978573. The reversal of 14978563 is 36587941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14978563 is a prime.

It is not a weakly prime, because it can be changed into another prime (14978503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7489281 + 7489282.

It is an arithmetic number, because the mean of its divisors is an integer number (7489282).

Almost surely, 2^14978563 is an apocalyptic number.

14978563 is a deficient number, since it is larger than the sum of its proper divisors (1).

14978563 is an equidigital number, since it uses as much as digits as its factorization.

14978563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 14978563 is about 3870.2148519171. The cubic root of 14978563 is about 246.5036665586.

The spelling of 14978563 in words is "fourteen million, nine hundred seventy-eight thousand, five hundred sixty-three".