213245365 has 8 divisors (see below), whose sum is σ = 270947160. Its totient is φ = 160561152.

The previous prime is 213245309. The next prime is 213245413. The reversal of 213245365 is 563542312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12909649 + 200335716 = 3593^2 + 14154^2 .

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 213245365 - 2⁷ = 213245237 is a prime.

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, 1254300 + ... + 1254469.

It is an arithmetic number, because the mean of its divisors is an integer number (33868395).

Almost surely, 2^213245365 is an apocalyptic number.

It is an amenable number.

213245365 is a deficient number, since it is larger than the sum of its proper divisors (57701795).

213245365 is a wasteful number, since it uses less digits than its factorization.

213245365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508791.

The product of its digits is 21600, while the sum is 31.

The square root of 213245365 is about 14602.9231662705. The cubic root of 213245365 is about 597.4384920608.

Adding to 213245365 its reverse (563542312), we get a palindrome (776787677).

The spelling of 213245365 in words is "two hundred thirteen million, two hundred forty-five thousand, three hundred sixty-five".