213304325 has 12 divisors (see below), whose sum is σ = 284843748. Its totient is φ = 157516800.

The previous prime is 213304307. The next prime is 213304361. The reversal of 213304325 is 523403312.

It can be written as a sum of positive squares in 6 ways, for example, as 12061729 + 201242596 = 3473^2 + 14186^2 .

It is not a de Polignac number, because 213304325 - 2²² = 209110021 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 213304325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327836 + ... + 328485.

It is an arithmetic number, because the mean of its divisors is an integer number (23736979).

Almost surely, 2^213304325 is an apocalyptic number.

213304325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213304325 is a deficient number, since it is larger than the sum of its proper divisors (71539423).

213304325 is a wasteful number, since it uses less digits than its factorization.

213304325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656344 (or 656339 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 213304325 is about 14604.9418006372. The cubic root of 213304325 is about 597.4935487128.

Adding to 213304325 its reverse (523403312), we get a palindrome (736707637).

The spelling of 213304325 in words is "two hundred thirteen million, three hundred four thousand, three hundred twenty-five".