213441445 has 8 divisors (see below), whose sum is σ = 292719744. Its totient is φ = 146359824.

The previous prime is 213441439. The next prime is 213441451. The reversal of 213441445 is 544144312.

It is an interprime number because it is at equal distance from previous prime (213441439) and next prime (213441451).

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 213441445 - 2⁷ = 213441317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049129 + ... + 3049198.

It is an arithmetic number, because the mean of its divisors is an integer number (36589968).

Almost surely, 2^213441445 is an apocalyptic number.

It is an amenable number.

213441445 is a deficient number, since it is larger than the sum of its proper divisors (79278299).

213441445 is an equidigital number, since it uses as much as digits as its factorization.

213441445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098339.

The product of its digits is 7680, while the sum is 28.

The square root of 213441445 is about 14609.6353479476. The cubic root of 213441445 is about 597.6215516902.

Adding to 213441445 its reverse (544144312), we get a palindrome (757585757).

The spelling of 213441445 in words is "two hundred thirteen million, four hundred forty-one thousand, four hundred forty-five".