213353365 has 4 divisors (see below), whose sum is σ = 256024044. Its totient is φ = 170682688.

The previous prime is 213353333. The next prime is 213353407. The reversal of 213353365 is 563353312.

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 119224561 + 94128804 = 10919^2 + 9702^2 .

It is a cyclic number.

It is not a de Polignac number, because 213353365 - 2⁵ = 213353333 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 3 ways as a sum of consecutive naturals, for example, 21335332 + ... + 21335341.

It is an arithmetic number, because the mean of its divisors is an integer number (64006011).

Almost surely, 2^213353365 is an apocalyptic number.

It is an amenable number.

213353365 is a deficient number, since it is larger than the sum of its proper divisors (42670679).

213353365 is an equidigital number, since it uses as much as digits as its factorization.

213353365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42670678.

The product of its digits is 24300, while the sum is 31.

The square root of 213353365 is about 14606.6205879389. The cubic root of 213353365 is about 597.5393343736.

The spelling of 213353365 in words is "two hundred thirteen million, three hundred fifty-three thousand, three hundred sixty-five".