282212345 has 4 divisors (see below), whose sum is σ = 338654820. Its totient is φ = 225769872.

The previous prime is 282212341. The next prime is 282212347. The reversal of 282212345 is 543212282.

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 109579024 + 172633321 = 10468^2 + 13139^2 .

It is a cyclic number.

It is not a de Polignac number, because 282212345 - 2² = 282212341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (282212341) 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, 28221230 + ... + 28221239.

It is an arithmetic number, because the mean of its divisors is an integer number (84663705).

Almost surely, 2^282212345 is an apocalyptic number.

It is an amenable number.

282212345 is a deficient number, since it is larger than the sum of its proper divisors (56442475).

282212345 is an equidigital number, since it uses as much as digits as its factorization.

282212345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56442474.

The product of its digits is 7680, while the sum is 29.

The square root of 282212345 is about 16799.1769143610. The cubic root of 282212345 is about 655.9317741174.

The spelling of 282212345 in words is "two hundred eighty-two million, two hundred twelve thousand, three hundred forty-five".