214621441 has 4 divisors (see below), whose sum is σ = 223952832. Its totient is φ = 205290052.

The previous prime is 214621439. The next prime is 214621469. The reversal of 214621441 is 144126412.

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 not a de Polignac number, because 214621441 - 2¹ = 214621439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214621541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4665661 + ... + 4665706.

It is an arithmetic number, because the mean of its divisors is an integer number (55988208).

Almost surely, 2^214621441 is an apocalyptic number.

It is an amenable number.

214621441 is a deficient number, since it is larger than the sum of its proper divisors (9331391).

214621441 is an equidigital number, since it uses as much as digits as its factorization.

214621441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331390.

The product of its digits is 1536, while the sum is 25.

The square root of 214621441 is about 14649.9638566107. The cubic root of 214621441 is about 598.7208312986.

Adding to 214621441 its reverse (144126412), we get a palindrome (358747853).

The spelling of 214621441 in words is "two hundred fourteen million, six hundred twenty-one thousand, four hundred forty-one".