213225465353 has 4 divisors (see below), whose sum is σ = 213227324820. Its totient is φ = 213223605888.

The previous prime is 213225465263. The next prime is 213225465367. The reversal of 213225465353 is 353564522312.

It is a happy number.

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 8055421504 + 205170043849 = 89752^2 + 452957^2 .

It is a cyclic number.

It is not a de Polignac number, because 213225465353 - 2²⁴ = 213208688137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213225465353.

It is not an unprimeable number, because it can be changed into a prime (213225465253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745568 + ... + 991121.

It is an arithmetic number, because the mean of its divisors is an integer number (53306831205).

Almost surely, 2^213225465353 is an apocalyptic number.

It is an amenable number.

213225465353 is a deficient number, since it is larger than the sum of its proper divisors (1859467).

213225465353 is a wasteful number, since it uses less digits than its factorization.

213225465353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859466.

The product of its digits is 648000, while the sum is 41.

Adding to 213225465353 its reverse (353564522312), we get a palindrome (566789987665).

The spelling of 213225465353 in words is "two hundred thirteen billion, two hundred twenty-five million, four hundred sixty-five thousand, three hundred fifty-three".