214241561 has 4 divisors (see below), whose sum is σ = 214286592. Its totient is φ = 214196532.

The previous prime is 214241551. The next prime is 214241569. The reversal of 214241561 is 165142412.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214241561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214241561.

It is not an unprimeable number, because it can be changed into a prime (214241569) 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 in 3 ways as a sum of consecutive naturals, for example, 14405 + ... + 25218.

It is an arithmetic number, because the mean of its divisors is an integer number (53571648).

Almost surely, 2^214241561 is an apocalyptic number.

It is an amenable number.

214241561 is a deficient number, since it is larger than the sum of its proper divisors (45031).

214241561 is an equidigital number, since it uses as much as digits as its factorization.

214241561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45030.

The product of its digits is 1920, while the sum is 26.

The square root of 214241561 is about 14636.9928947171. The cubic root of 214241561 is about 598.3673773422.

Adding to 214241561 its reverse (165142412), we get a palindrome (379383973).

The spelling of 214241561 in words is "two hundred fourteen million, two hundred forty-one thousand, five hundred sixty-one".