213852245 has 4 divisors (see below), whose sum is σ = 256622700. Its totient is φ = 171081792.

The previous prime is 213852227. The next prime is 213852271. The reversal of 213852245 is 542258312.

213852245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 107205316 + 106646929 = 10354^2 + 10327^2 .

It is a cyclic number.

It is not a de Polignac number, because 213852245 - 2¹⁰ = 213851221 is a prime.

It is a Curzon 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, 21385220 + ... + 21385229.

It is an arithmetic number, because the mean of its divisors is an integer number (64155675).

Almost surely, 2^213852245 is an apocalyptic number.

It is an amenable number.

213852245 is a deficient number, since it is larger than the sum of its proper divisors (42770455).

213852245 is an equidigital number, since it uses as much as digits as its factorization.

213852245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42770454.

The product of its digits is 19200, while the sum is 32.

The square root of 213852245 is about 14623.6878043809. The cubic root of 213852245 is about 598.0047100146.

The spelling of 213852245 in words is "two hundred thirteen million, eight hundred fifty-two thousand, two hundred forty-five".