282712121 has 2 divisors, whose sum is σ = 282712122. Its totient is φ = 282712120.

The previous prime is 282712117. The next prime is 282712147. The reversal of 282712121 is 121217282.

It is an a-pointer prime, because the next prime (282712147) can be obtained adding 282712121 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282609721 + 102400 = 16811^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 282712121 - 2² = 282712117 is a prime.

It is a super-2 number, since 2×282712121² = 159852286720637282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (282712151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141356060 + 141356061.

It is an arithmetic number, because the mean of its divisors is an integer number (141356061).

Almost surely, 2^282712121 is an apocalyptic number.

It is an amenable number.

282712121 is a deficient number, since it is larger than the sum of its proper divisors (1).

282712121 is an equidigital number, since it uses as much as digits as its factorization.

282712121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

The square root of 282712121 is about 16814.0453490527. The cubic root of 282712121 is about 656.3187470716.

The spelling of 282712121 in words is "two hundred eighty-two million, seven hundred twelve thousand, one hundred twenty-one".