212344025 has 12 divisors (see below), whose sum is σ = 278795772. Its totient is φ = 159882240.

The previous prime is 212344001. The next prime is 212344081. The reversal of 212344025 is 520443212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 841 + 212343184 = 29^2 + 14572^2 .

It is not a de Polignac number, because 212344025 - 2²⁴ = 195566809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249392 + ... + 250241.

It is an arithmetic number, because the mean of its divisors is an integer number (23232981).

Almost surely, 2^212344025 is an apocalyptic number.

212344025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212344025 is a deficient number, since it is larger than the sum of its proper divisors (66451747).

212344025 is a wasteful number, since it uses less digits than its factorization.

212344025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499660 (or 499655 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 212344025 is about 14572.0288566829. The cubic root of 212344025 is about 596.5955574499.

Adding to 212344025 its reverse (520443212), we get a palindrome (732787237).

The spelling of 212344025 in words is "two hundred twelve million, three hundred forty-four thousand, twenty-five".