214440245 has 4 divisors (see below), whose sum is σ = 257328300. Its totient is φ = 171552192.

The previous prime is 214440241. The next prime is 214440253. The reversal of 214440245 is 542044412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57138481 + 157301764 = 7559^2 + 12542^2 .

It is a cyclic number.

It is not a de Polignac number, because 214440245 - 2² = 214440241 is a prime.

It is a super-3 number, since 3×214440245³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214440241) 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, 21444020 + ... + 21444029.

It is an arithmetic number, because the mean of its divisors is an integer number (64332075).

Almost surely, 2^214440245 is an apocalyptic number.

It is an amenable number.

214440245 is a deficient number, since it is larger than the sum of its proper divisors (42888055).

214440245 is an equidigital number, since it uses as much as digits as its factorization.

214440245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42888054.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 214440245 is about 14643.7783717181. The cubic root of 214440245 is about 598.5522921200.

Adding to 214440245 its reverse (542044412), we get a palindrome (756484657).

The spelling of 214440245 in words is "two hundred fourteen million, four hundred forty thousand, two hundred forty-five".