212755241 has 4 divisors (see below), whose sum is σ = 214948692. Its totient is φ = 210561792.

The previous prime is 212755237. The next prime is 212755243. The reversal of 212755241 is 142557212.

It is a happy number.

212755241 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 158659216 + 54096025 = 12596^2 + 7355^2 .

It is a cyclic number.

It is not a de Polignac number, because 212755241 - 2² = 212755237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212755243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096580 + ... + 1096773.

It is an arithmetic number, because the mean of its divisors is an integer number (53737173).

Almost surely, 2^212755241 is an apocalyptic number.

It is an amenable number.

212755241 is a deficient number, since it is larger than the sum of its proper divisors (2193451).

212755241 is an equidigital number, since it uses as much as digits as its factorization.

212755241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193450.

The product of its digits is 5600, while the sum is 29.

The square root of 212755241 is about 14586.1318038745. The cubic root of 212755241 is about 596.9804225983.

The spelling of 212755241 in words is "two hundred twelve million, seven hundred fifty-five thousand, two hundred forty-one".