214231445 has 8 divisors (see below), whose sum is σ = 257526744. Its totient is φ = 171085824.

The previous prime is 214231397. The next prime is 214231447. The reversal of 214231445 is 544132412.

214231445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21743569 + 192487876 = 4663^2 + 13874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214231445 - 2⁸ = 214231189 is a prime.

It is a super-3 number, since 3×214231445³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214231447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34244 + ... + 40013.

It is an arithmetic number, because the mean of its divisors is an integer number (32190843).

Almost surely, 2^214231445 is an apocalyptic number.

It is an amenable number.

214231445 is a deficient number, since it is larger than the sum of its proper divisors (43295299).

214231445 is an equidigital number, since it uses as much as digits as its factorization.

214231445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74839.

The product of its digits is 3840, while the sum is 26.

The square root of 214231445 is about 14636.6473278548. The cubic root of 214231445 is about 598.3579593444.

Adding to 214231445 its reverse (544132412), we get a palindrome (758363857).

The spelling of 214231445 in words is "two hundred fourteen million, two hundred thirty-one thousand, four hundred forty-five".