282127421 has 2 divisors, whose sum is σ = 282127422. Its totient is φ = 282127420.

The previous prime is 282127397. The next prime is 282127463. The reversal of 282127421 is 124721282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230128900 + 51998521 = 15170^2 + 7211^2 .

It is a cyclic number.

It is not a de Polignac number, because 282127421 - 2¹⁸ = 281865277 is a prime.

It is a super-2 number, since 2×282127421² = 159191763360222482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282127471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141063710 + 141063711.

It is an arithmetic number, because the mean of its divisors is an integer number (141063711).

Almost surely, 2^282127421 is an apocalyptic number.

It is an amenable number.

282127421 is a deficient number, since it is larger than the sum of its proper divisors (1).

282127421 is an equidigital number, since it uses as much as digits as its factorization.

282127421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 29.

The square root of 282127421 is about 16796.6491003414. The cubic root of 282127421 is about 655.8659726745.

The spelling of 282127421 in words is "two hundred eighty-two million, one hundred twenty-seven thousand, four hundred twenty-one".