213322245 has 8 divisors (see below), whose sum is σ = 341315616. Its totient is φ = 113771856.

The previous prime is 213322223. The next prime is 213322247. The reversal of 213322245 is 542223312.

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

It is not a de Polignac number, because 213322245 - 2⁷ = 213322117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322247) 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, 7110727 + ... + 7110756.

It is an arithmetic number, because the mean of its divisors is an integer number (42664452).

Almost surely, 2^213322245 is an apocalyptic number.

It is an amenable number.

213322245 is a deficient number, since it is larger than the sum of its proper divisors (127993371).

213322245 is a wasteful number, since it uses less digits than its factorization.

213322245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14221491.

The product of its digits is 2880, while the sum is 24.

The square root of 213322245 is about 14605.5552787287. Note that the first 3 decimals coincide. The cubic root of 213322245 is about 597.5102803388.

Adding to 213322245 its reverse (542223312), we get a palindrome (755545557).

The spelling of 213322245 in words is "two hundred thirteen million, three hundred twenty-two thousand, two hundred forty-five".