14427561 has 4 divisors (see below), whose sum is σ = 19236752. Its totient is φ = 9618372.

The previous prime is 14427557. The next prime is 14427563. The reversal of 14427561 is 16572441.

14427561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16572441 = 3 ⋅5524147.

It is not a de Polignac number, because 14427561 - 2² = 14427557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14427563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404591 + ... + 2404596.

It is an arithmetic number, because the mean of its divisors is an integer number (4809188).

Almost surely, 2^14427561 is an apocalyptic number.

It is an amenable number.

14427561 is a deficient number, since it is larger than the sum of its proper divisors (4809191).

14427561 is an equidigital number, since it uses as much as digits as its factorization.

14427561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809190.

The product of its digits is 6720, while the sum is 30.

The square root of 14427561 is about 3798.3629368453. The cubic root of 14427561 is about 243.4431953194.

The spelling of 14427561 in words is "fourteen million, four hundred twenty-seven thousand, five hundred sixty-one".