282721057 has 2 divisors, whose sum is σ = 282721058. Its totient is φ = 282721056.

The previous prime is 282721051. The next prime is 282721063. The reversal of 282721057 is 750127282.

It is a balanced prime because it is at equal distance from previous prime (282721051) and next prime (282721063).

It can be written as a sum of positive squares in only one way, i.e., 261274896 + 21446161 = 16164^2 + 4631^2 .

It is a cyclic number.

It is not a de Polignac number, because 282721057 - 2⁷ = 282720929 is a prime.

It is not a weakly prime, because it can be changed into another prime (282721051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141360528 + 141360529.

It is an arithmetic number, because the mean of its divisors is an integer number (141360529).

Almost surely, 2^282721057 is an apocalyptic number.

It is an amenable number.

282721057 is a deficient number, since it is larger than the sum of its proper divisors (1).

282721057 is an equidigital number, since it uses as much as digits as its factorization.

282721057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 282721057 is about 16814.3110771747. The cubic root of 282721057 is about 656.3256620004.

The spelling of 282721057 in words is "two hundred eighty-two million, seven hundred twenty-one thousand, fifty-seven".