14567561 has 2 divisors, whose sum is σ = 14567562. Its totient is φ = 14567560.

The previous prime is 14567549. The next prime is 14567563. The reversal of 14567561 is 16576541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11526025 + 3041536 = 3395^2 + 1744^2 .

It is an emirp because it is prime and its reverse (16576541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14567561 - 2¹⁴ = 14551177 is a prime.

Together with 14567563, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₉₄₄₅₄₉ and since 14567561 and 944549 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (14567563) 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, 7283780 + 7283781.

It is an arithmetic number, because the mean of its divisors is an integer number (7283781).

Almost surely, 2^14567561 is an apocalyptic number.

It is an amenable number.

14567561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14567561 is an equidigital number, since it uses as much as digits as its factorization.

14567561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 14567561 is about 3816.7474372822. The cubic root of 14567561 is about 244.2280911572.

The spelling of 14567561 in words is "fourteen million, five hundred sixty-seven thousand, five hundred sixty-one".