212335245 has 24 divisors (see below), whose sum is σ = 380741400. Its totient is φ = 109339776.

The previous prime is 212335223. The next prime is 212335271. The reversal of 212335245 is 542533212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43283241 + 169052004 = 6579^2 + 13002^2 .

It is not a de Polignac number, because 212335245 - 2¹⁴ = 212318861 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 80050 + ... + 82659.

It is an arithmetic number, because the mean of its divisors is an integer number (15864225).

Almost surely, 2^212335245 is an apocalyptic number.

It is an amenable number.

212335245 is a deficient number, since it is larger than the sum of its proper divisors (168406155).

212335245 is a wasteful number, since it uses less digits than its factorization.

212335245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162749 (or 162746 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 212335245 is about 14571.7275914697. The cubic root of 212335245 is about 596.5873346596.

Adding to 212335245 its reverse (542533212), we get a palindrome (754868457).

The spelling of 212335245 in words is "two hundred twelve million, three hundred thirty-five thousand, two hundred forty-five".