214442161 has 4 divisors (see below), whose sum is σ = 219429232. Its totient is φ = 209455092.

The previous prime is 214442149. The next prime is 214442191. The reversal of 214442161 is 161244412.

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 214442161 - 2²⁷ = 80224433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214442191) 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, 2493471 + ... + 2493556.

It is an arithmetic number, because the mean of its divisors is an integer number (54857308).

Almost surely, 2^214442161 is an apocalyptic number.

It is an amenable number.

214442161 is a deficient number, since it is larger than the sum of its proper divisors (4987071).

214442161 is an equidigital number, since it uses as much as digits as its factorization.

214442161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987070.

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

The square root of 214442161 is about 14643.8437918465. The cubic root of 214442161 is about 598.5540747810.

Adding to 214442161 its reverse (161244412), we get a palindrome (375686573).

The spelling of 214442161 in words is "two hundred fourteen million, four hundred forty-two thousand, one hundred sixty-one".