14188561 has 4 divisors (see below), whose sum is σ = 14279092. Its totient is φ = 14098032.

The previous prime is 14188553. The next prime is 14188571. The reversal of 14188561 is 16588141.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 12852225 = 1156^2 + 3585^2 .

It is a cyclic number.

It is not a de Polignac number, because 14188561 - 2³ = 14188553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14188571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45030 + ... + 45343.

It is an arithmetic number, because the mean of its divisors is an integer number (3569773).

Almost surely, 2^14188561 is an apocalyptic number.

It is an amenable number.

14188561 is a deficient number, since it is larger than the sum of its proper divisors (90531).

14188561 is an equidigital number, since it uses as much as digits as its factorization.

14188561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90530.

The product of its digits is 7680, while the sum is 34.

The square root of 14188561 is about 3766.7706327835. The cubic root of 14188561 is about 242.0914493984.

The spelling of 14188561 in words is "fourteen million, one hundred eighty-eight thousand, five hundred sixty-one".